[Rek]

I think you are making a bit too much of this.

The guy may have mis-read his hand and thought he had Q high.
He may have been multi tableing and not paying attention.
He may have hit the wrong button.
He may be a donk.
He may be the guy who complained about Omaha cheating in the other thread. Perhaps he thought you could only use 1 hole card here.

If there was any kind of soft play or collusion he would simply bet out and win by a fold.

I know this is AP but lets not read too much into what seems like poor play or mis-reading.