Season 2 completed production a couple of weeks ago. SNW has completed production on its final 2 seasons. This is the first time there has been a clear deck with no Trek in development or production since 2005.
It isn’t necessarily virtue signalling. A new ownership team tends to like having a fresh start on key properties. It comes at the right time, with Kurtzman’s contract up at the end of the year. Financially there’ll be a bit of brinkmanship. If the studio greenlights another Kurtzman Trek show now, they’ll be handcuffed to him for the next few years and his deal will go up in value. Hold off, and they can keep the price down or go for someone else.