To be fair, Spencer Knight probably is the most highly regarded goalie prospect since Andrei Vasilevskiy in 2012. Goalies can be a 4+ year development path, so it's tough to know what your goalie situation might be like that far down the road. It's amusing re-reading the hot takes on the Devils board when Mackenzie Blackwood was taken with a high 2nd round pick because he didn't address an immediate need like Daniel Sprong would have, plus Cory Schneider seemed like he was surefire #1. Fast forward less than four years and Sprong is already on his 2nd team, Schneider's had injury issues, and Blackwood is already going to be competing for a starting gig.
It's tough to know what a 36 year old Jonathan Quick is going to look like, whether Campbell will still be in the organization, or whether guys like Petersen/Villalta pan out.
I get that there's a general phobia of taking goalies with high picks because a few didn't pan out, but we also disregard how most late 1st round skaters end up being replacement level guys.