The other wasabi issue I've heard of is that supposedly, there have been mixed coins traced by law enforcement, leading to arrests, with results replicated by (Samouri funded) OXT. Biased or not, I haven't heard of any claims of Samouri's implementation bring deanonymized. Personally, I like the free remix feature of Samouri paired with my own dojo, and some of my UXTO's have 40+ remixes on them yielding an absurdly huge anonyminity set.