If you want to read it literally, no. They can't "go back" without deciding to do so, which would be continuing to choose what to do.
If you read it as the common English phrase "there's no going back", no. It's just a thing people say in place of something more dry like "I will continue doing this for as long as I feel I should which I currently think is a long time or forever but saying that would be a bit ridiculous".
