Rather than arguing over the merits of the WRs you listed versus ours, I'll say I'm mainly skeptical because I'm not convinced that Joe Brady is anywhere close to Sean McVay. So like I said at the end of my post I would love for Brady to prove me wrong. I feel pretty confident that I know how each of our skill players will perform this year, for better or worse. I'm less confident that I know how Brady will perform, again for better or worse. I won't be totally shocked if he turns out to be a top 8ish offensive mind. I need to see it first though.
I also don't want to be the guy that drags arguments from other threads into this one, so I'll leave it at that.
For what it's worth I can see the vision. Almost all of our primary skill players on offense can be moved all around the formation. I can envision an offensive mastermind turning that into something very difficult to defend, even in the absence of one player that can take over games. Just need to see it.