From the video

Even the one guy who shouldn't be running routes is Isaiah Williams... He does score a touchdown in this one... when your route share 74% and not 90% plus, you're much more boom bust... I would call him a boom bust wide receiver three/flex play moving forward.
Mentioned at 15:15 – 15:53Captured by STACKED 2 hr after posting
STACKED’s take
NeutralRole
Boom-bust WR3/flex at 74% route share; great metrics, zero floor
Isaiah Williams scored a touchdown in Week 8 despite a 74% route share (below the 90%+ threshold for consistent production); Ron Stewart classifies him as boom-bust WR3/flex with an awesome parametric profile but a zero floor due to target competition in the Jets offense. Film suggests he was running open all day.
Isaiah WilliamsNYJPlayer page — value, ADP, projections, and every insightMore on Isaiah Williams and from Ron Stewart
Fantasy Points
Yahoo Sports NFL
Yahoo Sports NFL
Yahoo Sports NFL
Gang Green Nation
Yahoo Sports NFL
