I have to think that we are in the beginning stages of seeing an improved PAC. But as you stated, with how warm the west PAC is there needs to be some caution in this.
I'm having a ton of fun. I can't speak for other programs are, it's totally possible other programs are much more extensive with the math (but it probably depends on what you're seeking). TBH though its been a bit too easy so far, I was hoping for a bit more of a challenge. This isn't to say I am not getting anything out of it, I have learned some techniques with respect to winter forecasting, especially within the medium-range and evaluating models to help with trying to identify potential trends and model weaknesses.
The section we're doing in this class though on seasonal forecasting though is really just basic stuff...going over things like PDO/AMO/ENSO/QBO but not in any great depth. But the professor is quite experienced so the real value comes from him sharing his experiences and knowledge. This is what I love most. I actually have the same professor for both classes I'm taking now and he is awesome.