No conversation about WR should take place in a vacuum. Evaluating by numbers alone, without accounting for things like who was actually throwing him the ball, what his role was within the offense, how often his team was playing with a lead versus playing catch-up, etc., puts far too much of a premium on cold numbers.
One would hope that the teams' eval of guys like Garcon and Morgan would have more to do with studying actual coaches film, and interviews with former coaches, and worrying more about things like route-running, ability to read-adjust at the line and on the fly, adjust to a ball in flight, hands, balance, YAC, etc.
The Skins clearly like what they've seen in their study and evaluation, based on FAR more pertinent access/data than any of us here have access to. We get to see network broadcast TV coverage and study box scores. To not give professional evaluators at the very top of their profession the benefit of the doubt is kinda silly.
Unless they're named Cerrato of course. Which, happily, ours aren't.