I've been on this board for a long time and I've never, ever seen Bob Lee shill for QSC. He's a very knowledgeable, helpful guy, who knows his stuff about power amplifiers. His advice is extremely sound and does not just pertain to QSC.
The fact that you and some other folks are completely ignoring what he has to say on power amplifiers is your failing, not his.
As for myself, I don't even remotely have a dog in this fight as I work in the hi-fi business (as an amplifier designer). I do find it strange that people will out and out discount the advice of pros in the field in favour of purely anecdotal experience, though. Why anyone would conduct a test of amplifiers without holding an important variable constant, especially after they've been made aware of that variable is beyond my comprehension.
And I don't believe that all power amplifiers are made equal, either. I know that in real world testing there are things that might differentiate one amp from another (i.e. clipping behaviour). However, there's no way to accurately sort that out without holding the gain variable constant.
Anyway, I'll say no more about it as it's clear that my input isn't welcome. Have fun wallowing in your own ignorance.