Historically, smaller WRs (<200 lbs) were downgraded for fear of injury potential, inability to out-strength DBs, etc. Last week on Ship Chasing, @YardsPerGretch mentioned that these WRs might not be as disadvantaged with emphasis on player safety, improved scheme, etc.

I set out to see if anything has changed for these players, first looking at games played for WRs in 4 separate weight groups (yay arbitrary cutoffs). Largely, nothing has changed, suggesting WRs are at just as probable to get injured, regardless of weight.

Next, I wanted to see if the percentage of WRs in each group (min 30 targets) had changed recently. Over the past 5 years, the percent of WRs under 180 lbs has jumped from ~35% to nearly 50%. A good indicator for the WRs under 180 lbs this year.

Next, I explored which groups of WRs had the most success when on the field, using fantasy points per game and total receptions. There seems to be little statistical significance between each weight class, further implying that weight is not as critical to success.

For reference, here's a list of notable WRs in the 2021 class at 180 lbs or less:
-Devonta Smith (170)
-Tutu Atwell (165)
-Rondale Moore (180)
-Anthony Schwartz (179)
-Jaelon Darden (174)
-Tre Nixon (180)

Ultimately, I'm not concerned about these guys because of their weight.

Also, to close this out, I really enjoyed this article from @bhoward_81 exploring a couple of smaller players that could succeed at the NFL level: https://theathletic.com/2506944/2021/04/10/diminutive-dynamos-three-undersized-prospects-who-will-be-value-picks-in-the-2021-nfl-draft/