He hasn't shown enough to definitively justify being ahead of Antony in the pecking order either. Besides, Antony came on as a substitute for about 20-25 minutes, and outside of the game against Barnsley, he barely played this season.
Additionally, the starting wingers have been Garnacho and Rashford, not Antony. In my view, it's essentially a toss-up between him and Antony at the moment, and it appears ETH favored Antony for this particular game. If he's unhappy about a teammate being substituted in ahead of him, then it reflects an attitude issue, especially considering he hasn't consistently demonstrated the level of ability required to secure a spot. That's not an attitude I'd want in the team. Prove yourself at the level of world class players first then that kind of attitude gets a pass.