Spin up the wheel of poorly sourced ooga-booga, cause here's some that kinda makes sense:

"...just few weeks ago Matt Booty (Head of Microsoft Studios) admitted that they are searching for AA studios which they could support and grow. And it looks like they did not throw words to the wind as Microsoft is getting ready to purchase Obsidian Entertainment."

https://gamestechica.com/2018/08/08/obsidian-entertainment-letter-of-intent-for-an-acquisition-by-microsoft-leaked/