I'm not going to say they are shit finishers. But they aren't natural goalscorers, ruthless and someone who can smell goals. Apart from those two finishes, there was that move in the 1st half, that Mata dummied over. Any proper goalscorer would have been at the end of the cross, or at the very least 5 yards higher up. If Mata had not done a dummy and got a shot on target, there should've been someone to pounce on the rebound.
The issue with Martial especially is, his movement is erratic at times. Sometimes, he's moving around perfectly coming to get the passes, making himself available, and the other times, he's static at the same position like a lot of the times yesterday