imo it's too early to say that but if you feel that way, I'm fine with that^^
As for me personally there's no Good Summer Vacation without Kaiten.
Also.. I saved the Entire Universe at lvl90 but I reach lvl100 on a Summer Vacation.. huh.. but well, I anticipated to save the Thirteenth Shard in 7.0 Dawnsinger. Though I'm kinda glad to be wrong about that since I made plans for alts that I would play for that Scenario, since that didn't happen, there is also no reason to make those alts.
But I also liked the Gameplay of Endwalker until 6.1 ..so yeah I hope they Bring Back Kaiten and then
Every Day is a Summer Vacation~