You're correct when you're talking about purchases. However, bonuses like this credit down the road, much later. I'm looking at the lingo on this and it says that "Pass qualifying points will be posted to your Southwest Rapid Rewards account within 6-8 weeks after the Promotion Period ends on 12/31/2025"
To me that indicates that the points will be on the account in February-ish of 2026, thus counting towards earning the following year CP (and yeah, I guess the rest of 2026 if you didn't already have it). I presently have 2025 CP and I have yet to earn 2026 CP. It's going to be close!! I was hoping for these bonus points for this year, but alas.