Yeah but the raw number 9 isn't that useful. And all rookie WRs is not the right data set.
We should be looking at first rounders or first WR taken, and ideally finding ones for teams that had almost no target competition either.
The comps are Nabers, BTJ, JaMarr Chase, MHJ, Odunze, Garrett Wilson, Drake London, Jaylen Waddle. In the past 5 years, top 15 picks at WR.
Odunze aside...all the other ones has pretty outstanding rookie seasons.
Waddle had 6
Chase had 13
MHJ had 8
BTJ 10
Nabers 7
Wilson 4
London 4
Odunze 3 (easily the worst season of all these guys)
I think you're kind of picking a nit. That's fine. Project him for 6. But the average TDs of similar rookies is 55/8 = just under 7. So give him 6 or 7. Does that change the point at all?
ETA I also think x% of teams receiving TDs is a silly metric. More predictive would be x% of targets turning into TDs. It's just like x% of yards is kind of silly - do the target share and the YPT fall within reasonableness? Then it's reasonable.