I know it is caf sin to have an opinion on a player you haven't seen for at least 6 years, but I'm not that convinced by Zaha myself. Because of this, I have not been surprised that Moyes hasn't been convicted either.
He doesn't strike me as a natural footballer, he seems like an athletic kid but not as talented as the ideas he has. He seems to be trying to emulate great players he grew up watching, but 90% of these tricks are both uneccessary and also unsuccessful.
Adnan looks a different level technically, it isn't just experience. Tom Ince also looks far more a natural footballer to me.