On a quest to find out whether or not Crater Lake was still "diveable" (I'd heard otherwise though no one was 100% sure), I reached out to the National Park Service. Sadly, when they replied, I had my confirmation. For the moment, scuba diving is not allowed at Crater Lake. Here's the message I received.
Until Saturday October 28th, I had never considered the Newport Fingers a potentially dangerous dive site. They were, after all, fairly far up the jetty, shallow, and relatively free of boat traffic. I had also dived them a few times before and knew what to expect. Yes, the rocky entrance was a challenge and the surge not entirely pleasant, but all of it was very doable if you went slowly and carefully.