I like Lankinen, he was a solid backup for the Preds and should have been playing more games than the Preds allowed him. But I think anybody who thinks he can be a full-time NHL starter is deluding themselves based on a small sample. He shouldn't get anything more than 3x$2.5M. Maybe 3x$3M with inflation. He's a 1B option if your starter gets hurt, and I really wish the Preds had moved on from Saros and run with a Lankinen+Askarov duo instead, but... if you go out and sign him to a bigger contract you are just setting yourself up for disappointment and resentment.
I'm glad he parlayed his goalie-carousel loss in the musical chairs game of free agency into a bigger payday and some security, He always deserved a better fate than the last-minute $875k emergency deal he ended up with. So he'll get that win regardless. Just the team that locks him up on a starter's salary is probably going to regret it.