To claim Mete was rushed you can't just point to the fact he played in the NHL early in his career, you need to demonstrate that he had significantly more upside and that upside was squashed because of how we was utilized in the NHL.
When I look at a guy like Mete I see a player that if not rushed, may never have played ANY games in the NHL. This is a 5'9 dman, a guy with limited offense tools, a muffin for a shot, fourth round pick, that played 250 games in the NHL.. Where is the upside here? How is his career anyway disappointing based on who the player actually is? Let's say he plays a few seasons in the AHL, does he come into the NHL after that stint as a 6'1 PMD with a laser shot? Would he have learned more paired with Brook then he did with Weber? Of course not, he would almost for sure be the same, maybe slightly better, probably slight worse version of who is is - an undersized dman with limited offensive set.