Did you expect them to stop printing VMAXes? Pokémon EX kept being printed alongside Pokémon BREAK, Pokémon GX kept being printed alongside Tag Team GX, and so of course VMAX will continue to be printed alongside VSTAR. Both will disappear when the block ends.Groove Tablet basically gives each V deck a "small Arceus", which is sort of neat.
It doesn't bode well for the future that they're keep printing VMAXes despite having a new gimmick already. I hope that doesn't mean they're preparing another 3-prize gimmick for SV.
It wasn't forgotten, it isn't on the original JP text of the card. There's no guarantee they're going to continue to retain the reminder on cards for any given set.You forgot the phrase whenever Rule Box was mentioned in the card.
(Pokémon-V, Pokémon-GX, etc. are Rule Boxes.)