WabiSabi, as a protocol, is pretty decent. Maybe even better than Samourai. (And I apologize if I have ever argued the opposite.) The problem comes when the development team starts messing with their credibility.
It's been repeated constantly to not trust but verify, and this is the right direction, I agree. But, what people miss in here is that privacy services are reputation based, aka trust based. You do not sell your service with the "don't trust, verify" motto, if your reputation is going downhills. And let's face it, this was Wasabi's reputation for the past two years. They funded blockchain analysis and introduced blacklist filter in the main coordinator, or as I call it, sold out their users and turned pro-censorship. How do you expect the user to feel confident of his privacy if he knows he's funding the enemy?
Maybe the protocol is completely trustless as Kruw argues (even though I still have my doubts in some areas), but the reason people might not be using it, is because of bad reputation.
Wasabi has become more decentralized, which is beneficial for a privacy protocol. This shift eliminates the drawbacks of having a central entity exerting significant influence over the software's reputation. However, I believe people still remain skeptical due to the developers' immature and hypocritical behavior revealed in those last few years.