If i get it right the point against Trezor is that they partnered with a company that doesn't want to participate in anonymizing BTC that was used for illicit activities, leaving CoinJoin for use by law-abiding anonymizers and reducing their risk of being shutdown like mixers have been, which improves their long-term viability. IMO an overreaction and overly dramatic. Using CoinJoin (which is a choice) seems perfectly harmless to me. They might refuse your coins, but that doesn't make you worse off than if they didn't offer the service.