I'm definitely a little confused about Tango - I'm hoping we'll at least get more details come out about why Microsoft shuttered them. I mean, Ghostwire Tokyo was... whatever, and I could understand Microsoft not wanting to have them working on that kind of scale again any time soon. It wasn't bad by any means, but it was fairly expensive and perhaps didn't do as well as they hoped. But I'm surprised they didn't want to just downsize the studio and aim for another HI-FI Rush-esque game (or sequel).
But Arkane Austin being closed definitely makes sense. Not only was Redfall a disaster, but by the time Redfall released, 70% of the people who'd worked on Prey had left the studio. (Largely because the studio's president had left the studio just after Prey, I believe, rather than because of the Microsoft acquisition of Bethesda.) All that was really left was the name.