That is your opinion.
it remains to be seen if the devs share that opinion. So far, it is not looking good.
Transmog could be said to be no more of a core game play change than guild banks, yet Blizzard has already shot transmogs down. Blizzard has so far shot down almost every non vanilla change.
I would not count on guild banks avoiding that fate.
Even the “reduced tickets” argument holds little to no water, as the number of tickets after guild banks were implemented was still very high, if not higher than it was before guild banks were implemented.