While I agree with the sentiment that external dependencies are a risk, why should this be the top comment?
This person was having a service for free, having the possibility to pay and have better guarantees and is shocked that the service has changed its terms? How is this not an absurd mentality?
If gmail suddenly became paid, I would be pretty pissed, but I would have no real reason. It's a service I have for free!! Not even my taxes pay for it.