I think your theoretically have the right for a free out of bad cancellation if a provider changes their TOS in a way where it's reasonable to argue it affects the usability of the product for you. At least in the EU.
Common law countries in general as well. You're not supposed to be able to rewrite a contract arbitrarily, nor can you simply write into a contract that you can rewrite it at will. In common law, that theoretically makes it not a contract in the first place.
For that reason, if you raise the right kind of fuss and raise it to their legal team, the legal team will almost certainly let you out for free rather than run the risk of getting their contract invalidated to any degree in a court of law. I speak here generally in such countries, not just for Adobe.
However, this is theory. The rule of law is generally declining in the West. Your mileage may vary in any specific attempt.
