If they had, and really cared about the project's main purpose (mixing any coins without blacklists or whitelists), they could have worked out other solutions, like phasing out the centralized coordinator for something more decentralized just as one possible example.
Exactly this. If Wasabi were actually being targeted by laws and regulations, then the correct course of action is to let all their users know about it, inform all their users how to mitigate it, explain to their users how to swap to a decentralized coordinator, create easy tutorials for people to set up and run their own coordinators, and shut down their centralized coordinator long before they are forced to start cooperating with blockchain analysis.
Even in a worst-case scenario, like a 'cease and desist' type situation where they have to comply or shut down everything
immediately, they could (in my opinion
should) shut it down, inform everyone about the reasoning and provide guides and solutions (as you explained) as soon as possible. Education and openness should be the #1 priority in a project that deems itself open-source and privacy-enhancing.
But by doing that, they make less profit, so they instead chose to sell out their users.
This is my only explanation; though I'd love to be proven otherwise. Unfortunately, nopara73 (or anyone else) couldn't provide any satisfying answer in this regard.
Even now, some people who haven't seen that thread (and the really-new developments in this one) are still pointing to their CoinJoin service in answers unknowing that they have been compromised.
Wasabi should no longer be recommended to anyone in any situation. Any wallet which cooperates with blockchain analysis is bad enough; a self styled "privacy" wallet doing it is unforgivable. If you want to coinjoin, then at present the best solution is JoinMarket.
I get NotATether's point, though. Wasabi was very effective at
keeping it on the low, so I feel it's crucial for us as a community to spread the word (e.g. through
a blacklist 
- I hope the irony in this topic title was appreciated!

).