The interesting part is the Scene boxes thus far have included mechanically unique cards that weren't part of the mainline sets, and if that's the case for this upcoming product, that means more new Final Fantasy cards on the horizon
Prerelease highs for many MTG cards are rather ridiculous, and once players have a chance to figure out which cards are strong or not, prices commonly fall back to earth
Sephiroth on the other hand plays into the usual control strategies favored by Blue/Black by growing in strength for every opposing creature you remove from play
These include tournament entry or placement rewards, Buy-a-Box promos, book or comic promos, and Judge promos, to name a few
Beyond just making sense, changing this ruling wouldnt affect anything, outside of Vanille and Fang