FYI, the next WR drafted after Kincaid was Jonathan Mingo, who I can assure you would have gotten us nowhere at any speed. The other WRs drafted in the 2nd round that year were:
Jayden Reed - who's been pretty good but also can't stay healthy. Also hasn't been at all consistent for GB.
Rashee Rice - has been quite good when on the field, but between injury and suspension has missed way more time than Kincaid I think.
Marvin Mims - kind of a rich man's Jonathan Mingo, by which I mean "not good".
Rice over Kincaid is a pretty fair argument if you're okay with the off-field stuff. Reed vs Kincaid is an interesting debate but definitely not definitive in favor of Reed.
My point is that maybe a WR instead of Kincaid would've helped, but just as likely that it would've been significantly worse.