Yep you're right. Nothing constructive at all. I already spoke to this guy at length and he's not interested in listening to anyone with experience. Its true that some of these guys may learn something along the way but in my experience, such a huge amount of content going to waste is never a good thing.
These kinds of projects make me angry because they waste great talent and work. Its clear the concept artists have talent bit I'll eat my hat if a single playable level ever gets built.
What annoys me most is that project leaders like this bring virtually nothing to the table and ride on others talent claiming its their mod.