I really don't see the problem with Wings' offer. Not saying he should accept it and smile but it's certainly not a lowball offer.
Not sure how you can say its not a lowball offer. There isn't another goalie in the league that has started 40+ games and then signed a contract averaging under $3M.
A low-end starter makes $4M+ Jake Allen, who started fewer games last year while putting up similar stats, signed for $4.35. James Reimer signed for $3.4M to be a backup.
Clearly, offering Mrazek, the starter going into the season, $2.925 is a lowball.
That said, its the nature of arbitration. Odds are he ends up around $4M, which is right in the middle.