A centralized mixer is just someone else's wallet, it does nothing ensure fungibility or privacy because they are able to deanonymize their customers.
What someone
is capable of doing and
what is doing are two different things. If a mixer has gained users' trust, and indeed does not share the data, I don't see where's the problem with considering it privacy respecting.
Coinjoins are open parties where the dancers specifically choose which party to attend.
So solve the mystery:
- Wasabi team thrives to bring fungibility as they say.
- Wasabi team runs a coordinator which treats some inputs differently than some others, practicing blacklisting.
One of those must be false, otherwise Wasabi team contradicts themselves.