He didn't make a single appearance or make the bench for any league games during that period and only made the bench for a couple of Carabao Cup games.
I'm not doubting Lewis' abilities there, I'm just saying that it's not like Hughes has a track record showing undying faith in him that Lewis needs to repay.
I'm not saying there isn't a relationship there either, but I doubt Lewis would hold his career back (if we go up) out of loyalty to Hughes.