No it's all about the risk-reward and what the player was thought of before he took that deal.
JuJu's last two seasons, he average a dreadful 8.7 YPR. That's like a running back stat line.
His first year as an FA, he signed a 1 yr $8M deal with $7M GTD with the Steelers. He had 15 catches for 129 yards and only appeared in 5 games.
He then hits FA again and his deal with KC was team-friendly to say the least. 1 year $3.7M with 2.7M GTD. And then, like I said, he's on pace to have the second best year of his career.
For what KC paid to get him (a 1 year low-cost prove it deal on a WR bordering on out of the league), he's absolutely working out.