What's the point with that quite lackluster story in Endwalker?

[Adamantini]

They've been pushing nostalgia and old FF characters since ARR, this isn't something that's suddenly happening now. Ultros, Gilgamesh, Yojimbo, Cloud of Darkness, Cait Sith, Diabolos, Anima, every single boss from Omega's raid, and a number of the FFXII cast have all been pulled right out of their FF games, appearance and sometimes even personalities intact. The 5 original races are pulled directly out of FFXI with the serial numbers scratched off. Viera are directly from FFTA/FFXII with the same exact lore per the creator of the Viera, and Hrothgar can be made to look exactly like the Ronso (with back problems) from FFX. Gunbreaker uses FFVIII gunblades specifically because Yoshi-P thinks that Garlean gunblades that are just swords that shoot bullets aren't cool.

The Magus Sisters in XIV are primal summons, which like every other primal summon in the game, have a presence in other FF games as summons or enemies and look nearly exactly the same each time. Even the Garlean Empire is heavily based on the Gestahl Empire, and a bunch of magitek comes straight from FFVI with the same appearance.

Yoshi-P specifically said before ARR was released that the game was going to be a "Final Fantasy theme park", so this isn't a surprise and it's a part of the DNA of the game as fanservice for players of the series as a whole.

the difference was that before I felt that there was a reason for these characters to be there, and what I feel today is more an appeal to nostalgia. As I said, what was the full involvement of the Magus? Okay they are primals, so what? They barely appear, they're gone so that you can't even remember that they ever existed. I don't doubt that the same thing will happen with these 4 bootlickers from Golbez, where in a few months we won't even remember they existed anymore

As for how often this happens, I can't say, because for me they're all new characters, since I haven't played any games

Edit: What I mean is that I'm seeing very often people see some beloved character from some other FF, and they get a lot of hype about it. My friend himself was excited about the Magus, he told me they were his favorite characters. At the end of the dungeon he himself was left with the taste of "is that it?"

As soon as the new patch came out, it didn't take long for posts to appear from people saying that Golbez's lords were killed quickly and rushed.

To me who've never seen them before, they look like just any NPC without deep development. That's the kind of thing I'm talking about.