You make it seems like the guy at this stage is Ted Ginn! While I have questions too. I do believe he's shown more than enough to suggest he's going to be an average reciever at worst at the next level.
Just to be fair would you draft J. Waddle? He is not participating today either (and yes I realize both have injuries that need to heal)
I see Waddle as a slot receiver, I have trouble taking a slot @6 overall, I think that last guy like this taken high was Tavon Austin, although I believe Waddle is above him in receiving skills.
I do believe that Waddle has an NFL build however.