One thing to keep in mind.

These items are made just for the MogStation, they wouldn't exsist otherwise.
Its easy to say "This should of been gotten in game". But it wouldn't of been made.

I do however agree that seasonal items of past years should be gotten from a vendor the following year.

But with clear evidence that the MS cash is flowing back into the game (servers are expensive!) I'm happy to purchase things I missed or want.