Sure. Obviously there's no denying that the BJCP is a fairly matured organization and a moderately successful attempt at some sort of standardization.
But to say:
"I should also stress that I'm mostly talking about commercial beers here. For homebrewers, there are a well-defined set of standards that the brewer is trying to adhere to (BJCP guidelines). For commerical brewing... style guidelines typically go straight out the window (as they should)."
...in the context of this nebulous philosophical discussion that will reach no conclusion or consensus is to
1) Trip over the very notion of the discussion by implying that with homebrewed beers, it's easy to determine what's good or what's not good, as we have this one set of standards humans came up with, and then humans try to enforce. But in commercial beers, it somehow becomes impossible to determine what is a good beer. (I believe we're no closer or farther away from deciding whether a homebrewed beer is "good" vs. a commercial beer)
2) Overlook that many homebrewers do not give two ****s about BJCP styles towards the end goal of defining their beer as "good". I would argue that the percentage of homebrewers in this bucket is probably about 85-90%. Moreover, the notion that in commercial brewing, style guidelines go out the window (as they should)...heh...I would also argue this is not only much more prominent in homebrewing than commercial brewing, but also is it not true for the larger, more heralded commercial competitions, style guidelines are just as enforced (ex. BA Beer Style Guidelines -> GABF)? Maybe not so in your average everyday hipster Masshole beer blogger's reviews, but...