If Lewis had been more willing to stand and trade and have a war i dare say we would have seen his true power, maybe he knew his chin wasnt the best so that prevented him from mixing it more than he wanted to.

his chin was not that bad he got caught by monster shots that would have stopped most, it was his powers of recovery that left a lot to be desired.

his power was not overrated at all it is his over cautious approach that makes people question him