It may be useful to think of an example of a pharmaceutical company. For a pharma company that wants to go public, SEC checks to see whether they're cooking their books or lying to their investors in any form. It's FDA's job to make sure the drug they're selling doesn't make people's heads fall off.

Similarly, I would assume there are multiple teams within SEC, some for basic public disclosure/due diligence checking, and others for crypto regulations and enforcement. Just because one of the teams took longer to take action doesn't mean their entire lawsuit is invalid now.