Implied insults aside, you're absolutely right. The problems weren't with the DMs (who were great DMs in many other ways) it's that the heavy DM fiat style of gaming requires a charismatic, witty, mature, outgoing, confident DM who isn't preoccupied by thoughts of work, upcoming tests, relationship problems, children or a hangover in order to be done well. And that type of DM just doesn't come along very often. It's a great game when all of those things come together, but campaigns like that (again, IME) are catching lightning in a bottle. Even the same DM might not be able to pull it off on a weekly basis.
I'm not going to say that it wasn't meant as an insult, I'll just say that I was being frank. BITD D&D was played by millions of kids who had no clue what it took to be a DM yet the game flourished. So given that you could only find 2 out of 30-40 DMs that ran games the way you wanted means it is more likely that you yourself weren't a good fit for the game, not that the 30-40 DM that didn't meet your standards weren't a good fit for the game.
Nothing wrong with that. That is the reason that there are more RPG games out there than anyone has shelf space enough to hold them. It doesn't mean the game only works with expert and charismatic DMs, it just means it didn't work for you.