The rebound went straight to the taker who, for obvious reasons, was further forward than anyone else. It was just tough luck.
In the same way, someone was tracking back for the second goal. Watch the replay. The ball went to the attacker's side so he got to it first. Had it bounced right off Davis instead of left the defender would have got to it first.
As for Lambert not liking 4-4-2, I imagine he's spent most of his career playing in that formation. He has had a couple of quiet games, he has been ill. Why do people always look to make ridiculous conclusions from isolated incidents? Logically feeble, that's what it is.