"We should be able to trust that our tools will remain the tools we actually signed up to use." Yep... well that's what free software and open-source is for. You can't trust corporations so you MUST have the actual code. Harsh lesson but at least if something is learned and the mistake not repeated, that's OK.
FTFY. Free software is the user-freedom fork of that concept, while open source is the developer-corporation-freedom fork.