I think Motta has an Italian parent. He certainly hasn't gotten in through citizenship, as he hasn't been playing in Italy long enough, like how Ledesma got in. Really Motta playing for Italy is no worse than the many Englishmen playing for Scotland/Ireland/Wales, ect. Motta is an Italian name after all.
Wouldn't say he's a very good player. He's a decent player, but still very young and doesn't have great positioning. You can say his defence was the reason for that, but he was partly at fault for the first goal by half coming off his line, then standing like a statue so Welbeck could put it in anywhere. He shouldn't have been disillusioned with his defence at that stage.
Pretty good player and a good prospect at this stage. Anything more than that is jumping the gun.