The talent distribution for draft classes vary from year to year. We see this most obviously with quarterback prospects, since they are the talk of every draft cycle, but other positions see the same type of fluctuation.
In recent years, we've seen the wideout groups hold down classes, both at the top and throughout Day 2 and Day 3 with depth. This year, though, after Laquon Treadwell of Mississippi, the receiver unit is a bit suspect, as far as first-round locks go.
No, pass-catchers aren't the anchor that this draft pool can count on above anything else.