From the video

if you average under one yards per route run as a rookie, it's like basically over... his charting profile like wasn't so bad... he just kind of had a very whatever rookie season. His separation scores look really good... he does is what I call tick-tock improv route running... if he's going to manufacture a one-on-one look, he can go win that. The problem is it's not going to be at the correct depth... The break's not going to be where Jordan Love and Matt Laflur want it. And he's not going to see targets unless Jordan Love's extending a play.
STACKED’s take
Rookie YPRR under 1.0 and improv-dependent; unlikely to see targets in timing offense.
Golden averaged under one yard per route run as a rookie, a typically career-ending indicator; his charting profile wasn't catastrophic but was unremarkable. His separation scores look strong, but his production stems from 'tick-tock improv route running' where he manufactures one-on-one looks at incorrect depths with breaks not aligned to Jordan Love and Matt LaFleur's timing; he won't see targets unless Love extends plays, limiting his fantasy utility in a timing-based offense. Ranked 16th in separation ability but 67rd in separation win rate, indicating lack of consistency; 23rd percentile success rate vs. zone coverage. Matt Harmon notes his development trajectory mirrors Quinton Johnson's rookie charting profile—Johnson has improved since his rookie year, suggesting Golden could develop if he gains route discipline, but current role limitations will persist unless he takes a step forward.
Matthew GoldenWR · GBPlayer page — value, ADP, projections, and every insight