They all had a lot of tackles compared to Carter. Some also had more TFL and some had more sacks, the constant is tackling.It's perfectly fine if you want the Seahawks to go a different direction. There are certainly question marks about Carter.
But using college stats for DTs is highly dubious.
Go look at De'Ron Payne's college stats. 3 sacks. 5 TFLs. In his college career
Or Vita Vea
Or Dontari Poe
or Chris Jones
or Arik Armstead
When it comes to winning, having great players in the trenches is the best path to success, short of having a Patrick Mahomes level player at QB. They often don't put up huge numbers but they make the rest of the defense much better.