According to QSC's specs on this model, yes. Presuming each wedge is rated at 8 ohms impedance and they parallel all four, the impedance will be much lower than 4 ohms. Some wedges are 4 ohm cabinets. That's far too much power dissipation to send to stage wedges.
For all practical purposes, a wedge needs no more than 300 WRMS dissipation fed to it. Some are rated for 400 or more @ 4 ohms but you've got to bear in mind what you're dealing with here. This isn't your mains or FOH you're driving. Wedges are directional by design and do not need a boatload of amp headroom.
Thoughts?
Agreed.
Dependant on how many stage front men are in any given band, each in my experience ALWAYS wants their own monitor. If you are daisy chaining the monitors, you won't be able to give each band member their own "individual sweet" mix that they want. And as Fred said above, there would be a monitor war.
My advice would be if you absolutely have to daisy chain any of the monitors would be to do no more than two (2) of the stage monitors, and make those two either one on each side of the drummer, or two of the stage front men that stand close to each other that are needing to hear basically the same mix.
In my experience, the drummer and bassist mix needs to be very similar,
the lead guitarist needs his own mix, the rythym guitarist needs his own mix, and any keyboardist needs their own mix.
Remember that in most cases, the drummer is on a riser on the back of the stage and his mix HAS to be louder than the others and that it is imperative that he be able to hear each vocalist track, the bassist track and the rythym guitarist track. This is why I say that if you are going to daisy chain any of the monitors, do it for the drummer.
Just my thoughts.
As for your original question of running in bridge mono mode to increase the power to the monitors, I don't see the need to do so. Save that bridged mode for the house mains if you are going to bridge any of the amps.