Magic Merlin so confused

So I’m confused on the rolling with this! It says don’t use if the baby is able to roll in the suit. No where does it say if the baby is rolling don’t put him in it. I keep reading people say they had their baby in it even though their babies could roll but once they noticed the baby trying to roll in the suit they stopped using it. Because even if your baby can roll most the time it will take awhile before the baby will even be able to try to roll in the suit because it’s heavy and keeps them from getting off there back. So In this case my son rolls tummy to back. He doesn’t know how to go back to tummy yet. So would this work for us?