The QS8 probably would have survived the fall from the Epson to the floor unscathed even w/o the pillow. I’ve managed to topple 2 of my QS8s on their stands over. The first while pulling a tape measurer to verify distance set by the receiver and the second time tripping on a speaker wire. In both cases the only damage was slight scuffing on the one of the grills.
I’m curious if you were using bare wire or banana plugs?