There are alternatives for people who prefer to keep their privacy intact. The use of Bitcoin mixers is not the only way for a user to stay private. Having said this I think we really don't need Bitcoin mixers. We need ways to provide us privacy but Bitcoin mixers don't have the monopoly of this kind of service. The example given in the OP also provides privacy. CoinJoin also provides privacy in a manner that is legally acceptable. During these times when mixers are perceived negatively, there remains other ways to achieve what one can achieve with mixers.