He missed a month in 2020-21 with a leg injury, among other issues in his career. Given his workload, it's a concern. Not a dealbreaker, but a concern, given the Penguins' recent issues.
He's going to win the Vezina, but his performance was severely influenced by the way Boston plays. Swayman also had ridiculous numbers and actually had double the shutouts.
On a different team, Ullmark's numbers come back to earth and he does not have the resume that compels me to move assets for him.
GOALIE A:
207 games, 116-63-16, .919 SV%, 2.50 GAA
8 playoff games, 3-5-0, .888 SV%, 3.54 GAA
GOALIE B:
206 games, 117-60-20, .914 SV%, 2.65 GAA
8 playoff games, 2-6-0, .891 SV%, 3.71 GAA
Goalie A is Ullmark.
Goalie B is Tristan Jarry.
What you are proposing is terrible asset management with zero actual improvement at the position.