It didn't feel rushed or jumped at all in my opinion. Hinata watched the baseball practice for a day and it's more than likely he at that point realised what Otonashi is trying to achieve. So, he had an evening, a night and a day to come up with his decision to intervene, should an opportunity provide itself - like it did. And it's not like he wouldn't have already felt that way earlier. This moment simply was the best possible time to do it and he's surely the kind of guy who would cease such a moment. Tactical decisions and timing are important in baseball, after all, har har.

I can't really foresee at all how this is going to end with the new entity and everything. I can only hope Otonashi and Angel will get a good resolution.