I understand what youre saying but youre comparing him to the best players in the world here, and they have never had frail builts, short but stocky and strong. Jota is very strong for someone his size and he takes a ridiculous amount of punishment every time. I would honestly be surprised if he didnt end up a world class player. Premier league is very fast and physical, most frail finesse/technical players dont make it, I think david silva is only frail type player I can think of to be successful. Jesus too but hes ridiculously quick and wiry. Look at someone like alex pritchard, very technical and skillful player, same frail body type (although still bigger than lainez)- hasnt done much. Look what happened to giacherrini when he came in for sunderland from juventus, he was easily mom most games for the Italian national team and still flopped in england.
Anyways, just my opinion, if I was in charge I would be aiming for french league 1 players, plenty of young players with lots of pace and physical ability