I noticed the change to their documentation about two weeks ago. A couple days later, I checked my own account for something unrelated. My main instance (using 12 GB of RAM) was still up, but another that I only used for testing random things had just vanished from my account without a trace.
I get that they are well within their rights to reduce the Always Free resources (or even eliminate them entirely), but I did not get any notification that this was changing, nor that they would be terminating my instances that took the account above the Always Free limits. It would honestly have been _less_ sneaky (and potentially damaging) to simply start charging for resources above the new limit.
But, Oracle gonna Oracle I guess.