90% of everything is crap. Yes, we know. However, you failed to either disprove my theory - after all, wasn't Vampire a labor of love? - or prove the opposite - during the same period there was plenty of "cash in" crap produced by "professional" companies, not least TSR.
In addition to merely stating the obvious, your position also ignores a basic truth: not everything that succeeds is good, and not everything that fails I'd crap.
So what, exactly, is your point? Your theory is that "good games come from people who love making them." Well, duh? Most games do, good or bad. Gaming isn't exactly a strong concrete industry. You more or less have to enjoy the work to get into it. People don't make TTRPGs for the health benefits, you know.
Or are you trying to somehow hint that the makers of 3e or 4e don't love their game? Please. The people who made 4e love it and honestly and truly think it's the best game they could've made.
Just because you don't like it doesn't change anything.
WotC isn't made by big rich 1920's fatcats who drink brandy and laugh at the plight of the lower classes. They're gamers who have different tastes from yours, god forbid.