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That's why Wasabi decided to take the trade-off of blocking transactions from "nefarious sources" that's "according to" blockchain analysis companies. Wasabi believes that it gives them a layer of security. But does it truly give them a layer of security? It's currently working, but we can't be sure for how long.
That's right but I'm afraid the guys behind Wasabi wallet are doing a lot more than just censoring certain transactions. They may be fully cooperating with the government(s) and other agencies in deanonymizing all the transactions that go through their centralized "mixing" coordinator servers.
That's not at all how a coinjoin transaction works, coordinators do not have the ability to deanonymize the participants of a coinjoin even if they wanted to. There's no "centralized mixing coordinator servers" either, a coinjoin transaction is signed by each client participating in the round, all a coinjoin coordinator does is just take messages from the previous client client and passes it to the next client for each of them to sign.