Do you not think it has something to do with a lot of teams squeezing the space between defence and midfield, and never deviating from their instructions at Goodison?
Swansea sat in two banks of five for most of the game on Sunday, safe in the knowledge that there was absolutely no chance of Everton changing their shape, regardless of whether it was 0-0, 1-2 or 0-10.
It's no coincidence that Barkley has his best games as an attacking midfielder against opponents who have no respect for Everton's level of talent.
You just carry on blaming the fans, though.