I can see his point, though. They don't belong in my game, either. I've argued this point when the PrC format first changed and it remains. WotC needs to concentrate on giving us the "tools" not the "spoon-feeding". Some of it is useful, such as the adaptation, but stuff like in the world and organization, etc. are useless.
PLAYING A (insert PrC): How to play one? Shouldn't that be up to the player? Is it really hard to play a hellfire warlock or frenzied berserker that they have to spell it out for people? First one you, well, mix hellfire with eldritch blast and the other you super-rage and kill things. It's up to the player and/or DM from there to flesh out the rest of the background and details.
COMBAT: Yes, let's give players a How-To-Guide to powergaming.
ADVANCEMENT: I've yet to understand the reasoning behind this section. Seems like bland filler all the time.
RESOURCES: RESOURCES!? Now I know WotC's desperately sticking in useless fillers.
(insert PrC) IN THE WORLD: In what world? Everyone's world is different. Why should this matter?
ORGANIZATION: Same as above.
NPC REACTIONS: This can change constantly to the point where this section makes no sense. It changes depending on what the character does in which city or to which race or what other NPCs of the prestige class has done. To put it bluntly, this is the DM's call, not WotC's. If a DM can't figure out how the people the next town over will react to the player, then, what's he been doing?
(Insert PrC) LORE: One of the few things that should stay, but then again, why can't a DM do this on the fly?
(Insert PrC) IN THE GAME: Not only are they dictating what's in your world, but they have to let you know what good they are in a game?
ADAPTATION: One of the few, again, that should stay.
ENCOUNTERS and EXAMPLE NPC: Silly. These encounters and example NPCS are used, what, once? Most of the time the NPCs created in the books need a ton of fixes and errata.
And there ya go. As you can see, I hate the new PrC format with a passion ever since I first laid eyes on it...and still do.