Just as a counterpoint: I think some of the issues you raise are a matter of preference. "No good glams in x years for event x" is a pretty subjective take - though I agree that whenever a seasonal event comes up without a new outfit or mount it can feel like a bit of a bummer.

That said, I much prefer FFXIV's "quick and easy" seasonal events where there's at least some changes to it from previous years. Having to run the exact same event 70 times in a week for a 0.1% chance at the reward you want for 20 years and NEVER GETTING THE REWARD in certain other MMOs has given me a pretty strong and favourable opinion of FFXIV's events by way of that comparison alone.