"Utility forwards" are a huge part of the league. But finding the "right" ones can make a huge difference. Tampa Bay is a team that realizes that, and pays a premium to acquire them while still young and cheap. In many cases, the players were drafted as overagers (Coleman, Colton) or not even drafted at all (Jeannot, Gourde, Goodrow). There is value to be found there, whether it's as a team trying to compete in the present, or as a team cashing them in for more draft capital.
Ty Mueller is an interesting pick. He's not a guy putting up numbers against Junior players as an overager (as so many of these picks have historically been). He scored 25 points in 34 games in NCAA hockey, most of it as a 19 year old. He's one of the younger players, in fact the youngest C on the team, and yet the highest scoring. For comparison's sake, Cameron Berg put up one less point, and is 1 year older. He was drafted by the Islanders in the 4th round of 2021, and they seem overall happy with his development. But Mueller may be on a trajectory that is even higher.
Don't know as much about the other overager, Matthew Perkins. But he seems to have come out of nowhere - probably due to missing time due to Covid. In his first year in the USHL, he was the highest scoring C on his team (by a longshot), and the team won the USHL championship. Seems to be a late bloomer.