The issue is that you are assuming he won't be in other events in the future where you can just use your free points. At the moment, you're thinking if you could have gotten 80 frags.

Oasis has done this in the past where they don't give the full amount of frags. The fact tsunade showed up more than twice in missions provides hope for him to show up. After this week, then it becomes a irrational decision in your part to use the free points on jiraya or anything else since only a select few of whales will manage to get all of the ninjas at the time they have them.

Do your addition first Maybe your Calculation is broken. 10 from Shinobi Feast + 55 from Summer holiday = 65

Happy 2nd anniversary