It may even in the us, but a lawyer will cost you more than paying the fee. Though there is a class action in the us if enough people cancle - the lawyers get the cancle fee and you get $.25
Similar clauses, some without opt-outs, have proliferated widely throughout the tech industry. Most notably, Windows added them to most of their products shortly before the release of Windows 8. Interestingly, GitHub does not have these clauses yet.
I agree that this type of change to contract terms is not acceptable, but unfortunately you need a lawyer to fight it.