You're painting yourself quite accurately as a fisherman.
Your website and marketing is literally trolling for this kind of customer. Your ideal setup is nearly identical each time. That's niche' marketing - not a new world order. I've been there - that's been part of the Bar Mitzvah market for decades. None of this is truly new to the event market. It's where a certain segment and age group of the population sits with respect to these events, but it's not the rule.
It really is a DJs job to ask these questions, even if it's as simplw as asking if they've been to many wedings and what kind of styles did they like or dislike. When we fail to do that - and simply follow a set of planner forms - we get reviews like this one.
I'm fishing for people that want a high quality experience and appreciation for a high energy atmosphere, along with someone who values the details of your event. As far as setup goes... we work in traditional venues, where most dj's including the most expensive ones are pretty much working within the same confines in terms of space, power, and logistical aspects. It's very rare to see something out of the ordinary... especially since the high end venues have very capable and high quality built in lighting systems, with dozens of moving heads and architectural lights + on site light techs... so for the couples that have money, they opt to use that option. In those venues, simply a DJ and his dj booth is all that's needed.
In all honesty, I'm not sure what nearly identical means. I probably offer more solutions and customization options in NJ for couples with nearly 20 line item options + 3, soon to be 4, customizable dj booth setups. So technically the possibilities and combinations are very large... especially since all my pricing is a la carte, w no "packages" available. The only commonality is most do some sort of lighting and photo booth combination. In boston you do things different perhaps, where often you're dealing with blank canvases and the "solutions" may be more involved if needed. You've personally also expanded beyond the typical "mobile wedding dj" offerings and are more of a sound/av company focusing more on the custom solutions aspect, as opposed to standard wedding dj needs.
As I said, if this bride had never seen a wedding dj not quick mix, and even if the DJ asked what did you like.. I don't think this would be the point of appreciation she would point out. As someone who asks "what you do you appreciate or want your dancefloor to feel like throughout the night"... the response is often high energy, hype atmosphere later on, mix in some feel good stuff for the older guests early, but don't make it feel like a typical wedding. That's not super specific in terms of mixing style.
What she did was assume the DJ for this wedding would do quick mixing and he didn't according to her. The blame should be on her and not the DJ in my opinion. Not every DJ is the same and not every DJ can do the same thing as another DJ.
When I first became a DJ in 81 you played the entire song before mixing in the next song. There were some songs over 9 minutes long. One song that was hot at one time was Kamala Lovelace "When Can Our Love Begin". It was a big hit years ago and was over 13 minutes long. That wouldn't work for the young people of today. Most of the songs that are popular to them is no more than 4 minutes long and some of those songs in my opinion are made by artists with no talent and I use the term artists lightly. Yet it's about simply put how much money can be made from a song? Talent today takes a backseat over profit.
Mix you're stiill stuck in the 1980's and 90's and that's ok. You don't do weddings. The bride had NEVER seen a dj NOT quick mix. To her, this has always been a standard way of mixing at all her friends weddings. If you've never seen someone not quick mix, why would a bride, planning her first and only event w/ a dj, think to ask that.
You're blaming a bride... but the reality is that bride just broadcasted her opinion to 20,000 people. Isn't the whole point of seeing what she said to adjust so that never happens to you.
Talent today is perceived differenty than talent of the past. Things and trends evolve. To the 25-35yr old bride, talent is the DJ that can maintain energy and momentum on the dance floor and banging in as many of her and friends favorite songs seamlessly. Today it's about familiarity with the song selections, in the past it was about who could introduce something unique that they didn't hear anywhere else and dj's searching for that one hidden gem.
As I said... this seems to ALWAYS be controversial on here, and I guess i don't understand why. If you're in the Wedding industry, this should be obvious that this is where the expectations are going. If you don't do weddings or don't focus on them, totally different.