Everytime a major bank is caught doing something like that, UBS and Deutsche Bank come to mind, there is huge outcry about the lack of consequences. If a crypto exchange get's caught doing it, and there are consequences, there is huge outcry (among certain people) because there are consequences. Added severity, in the case of tornado cash, was helping North Korea. So not just money laundering but also circumventing sanctions that are taken very seriously by every political power that actually matters. Heck, even the Chinese at least try make it look like they adhere to the North Korea sanctions.