Two things are true:
1.The ice is horrible, costing the team games at times when lesser opponents rely more on fluky bounces.
2. Ullmark has lost this team two games already and I wouldn't say he has stolen them one yet (thankfully wasn't necessary). In game 2, the Panthers were running up the score, but Ullmark couldn't make a timely save.
And last night, he shouldn't have allowed 4 goals on like 20 shots.
If he isn't right, he shouldn't play, simple as that. Swayman is way too good for that. Remember: he had a pretty decent series against CAR last year when Ullmark was unplayable after the first 2 games.
The team is obviously (much) better than the Panthers. It would be a shame if they went out, because of multiple collapses of the eventual Vezina-winner.