Vintage kept its restricted list, because some people wanted to play with powerful cards (and also because Type 1.5, aka legacy had started to take root, which, at the time, was just vintage with the restricted list renamed "banned list"), but in standard, you already couldn't play with all your cards, so there really wasn't any good reason to keep a restricted list
Fezandpiti ex is arguably the best card in "Shrouded Fable" and it is present in every deck that can make room for it, as its powerful ability to draw three cards the turn after the player's Pokmon is knocked out helps players get back into a match easier
Regardless, it is a great foundation for the mod going forward, assuming these cards can one day be used, and shows a good baseline of what makes for a great custom card mod
Everything is always changing and the game is always morphing
I would definitely like to adopt it for Deck Well, in the end, what I want to say is that I like design and I have support cards, so I want Helios to come