I'm familiar with dweb, but it seems that they're just preparing to relearn the lessons of the early web (federation doesn't work; you need mechanisms to maintain Byzantine fault tolerant consensus; explicit economic incentives are required if you don't want the system to develop out-of-protocol centralizing economics; etc.).

So I'm just working on a CSS thing that barely qualifies as dweb. But the people I talk to that are into building solutions are well aware of the problems and tradeoffs. I don't disagree with your assessment. But the relearning is like our way of mining for genuinely new lessons. We're quixotic but totally self-aware about it.