I disagree - Brady makes Aiken look reasonably competent, I doubt he would even be on the roster as a wideout on many teams in this league and he most certainly would not have played wideout on any of the SB winning teams, even 2001. And that 2001 wide receiver group was probably truly a subpar group (with the exception of Troy), but after that, while we didn't have any spectacular receivers, we had relatively deep corps with several above average wideouts. Or at least several guys who were above average while paired with Brady. Branch, Givens, Patten, Brown.
The spread it around thing is overrated. We used to have 3-4 receivers of the same caliber, the snaps themselves were spread around a bit more, so of course receptions are as well.
Like Brady said, his first two reads on most plays are designed to be Moss & Welker. Personally, I'd like to see us utilize Faulk & Watson more, but as for receivers, its basically just Moss & Welker. Sam Aiken doesn't scare anyone, and Edelman is just a pretty good Welker fill-in.