A ToS change would almost certainly only apply to future versions/updates to the engine.
Oh? How about "We've decided we no longer wish to continue the service due to reorganization". Boom, there goes your app. What are you going to do - sue? Read the TOS. Once you get past the arbitration instead of law-suit clauses you'll see that they hold all the cards and you hold none. Yeah ok, you might save yourself a few weeks' of coding. In return for which you become their little bitch.
We felt manly like we'd said something meaningful, ask the while communicating and contributing nothing.
So politics, then?
Their currency is manipulated. Their stock market has 2 books, one set you can see, the other you can't.
The west sells food that poisons humans. The west has no respect for personal property (unless you're a billionaire). They are poisoning their environment such that you can no longer catch a fish in the ocean whose belly isn't filled with plastic. Oh, and don't get me started on the censorship of western news media.
The one day you'd sell your soul for something, souls are a glut.