We already bought tickets to take my daughter and a friend. Not sure what the controversy is. The movie will be fine. Rotten Tomatoes said what they did had nothing to do with Captain Marvel.
My main concern is that any use of time travel or manipulation can be a huge movie making cop-out unless there are clear limits on how it can be used. Otherwise it is essentially infinite power.
You don't actually take their word at face value on that do you? The timing of it is just too suspicious to think that someone didn't apply some pressure to them to take this action.