You beat me to it. The exact word, and it's not one that pops out daily in my brain.
He's neither right nor wrong, but it seems he's looking at popularity as a frame for his thoughts on fidelity, which make his points bitter more than accurate. To think that there aren't as many people as before interested or trying to accomplish the same goals he names as his own is to be, well, a curmudgeon, and an inaccurate one at that; but if framing his views around the emergence, in force, of everything he's against, and the commercial power it wields, then everything he says is true. I do agree with him when he more or less says that people now want a personalized audio experience, and aren't as interested anymore in agreeing upon an ideal of accurate reproduction, but focusing instead on what is pleasing to them.
I found this quote telling:
I've been thinking a lot about the dumbing down of audio appreciation lately (convenience vs. quality, economics vs. appreciation), and those thoughts started that whole inane Disturbing Trend thread as well as another on head-fi (now probably erased). I doubt it's any different than in the 80s, except that the digital age and age of convenience hadn't yet taken over completely. I can see why he feels its all going down the wrong path.