Greenwald contacted them for an upcoming article about a list of compromised encryption tools? Or some government actors didn't like Greenwald associate's use of TC?

Snowden definitely used TrueCrypt; he even recommended using it in late 2012. I would be curious if he stopped using it at any point in late 2012 or early 2013. He certainly wasn't advising all his acquaintances to stop using it in the summer of last year.

Microsoft has more legal resources to fight the government than TrueCrypt developers, and this MSFT CEO may be more useful in defending privacy rights than the prior couple even as MSFT was definitively compromised in multiple ways.