Why is Sky Field Banned in Expanded??

They literally have Cards now that does the same thing… you just either have to play Eternatus VMAX or have to play Tera Pokemon in order to do it… but what about Non-Dark Decks and Decks that don't use Tera Pokemon?? It's not fair to give such a powerful thing to Decks that are already super powerful, but for us who are not using that, we get nothing because Sky Field is still Banned.
I want to be able to put 4 Gengar's (the one that has an ability to put Damage Counters on the opponents Pokemon when they attach Energy) onto my Bench but I can't have enough space on my Bench to do that because I still need Pokemon to attack.