Weird take, but i'll indulge.
When the available options are Gibby, who has to face 40+ shots more often than not, or a goaltender who doesn't have experience in the NHL...who are you going to choose knowing, most likely, that you are going to lose unless your goaltender stands on their head?
I think you are hinting at that Gibson was overplayed because Anaheim didn't have a viable NHL back-up? I can kinda accept this reasoning. But these are the numbers over the last three years:
2020-21
Gibson: .903 SV%, 2.98 GA/G, 35 GP, 9 wins
Miller: .882 SV%, 3.61 GA/G, 16 GP, 4 wins
Stolarz: .926 SV%, 2.20 GA/G, 8 GP, 4 wins
Jarry: .909 SV%, 2.75 GA/G, 39 GP, 25 wins
2021-22
Gibson: .904 SV%, 3.19 GA/G, 56 GP, 18 Wins
Stolarz: .917 SV%, 2.67 GA/G, 28 GP, 12 Wins
Dostal: .907 SV%, 2.98 GA/G, 4 GP, 1 win
Jarry: .919 SV%, 2.42 GA/G, 58 GP, 34 wins
2022-23
Gibson: .899 SV%, 3.99 GA/G, 53 GP, 14 wins
Dostal: .901 SV%, 3.78 GA/G, 19 GP, 4 wins
Stolarz: .899 SV%, 3.73 GA/G, 19 GP, 5 wins
Jarry: .909 SV%, 2.90 GA/G, 47 GP, 24 wins
I would agree that Gibson is getting overplayed, but based on the numbers I think it is impossible to say that he would be better than Jarry in Pittsburgh.