>>53484994It does help balance a Standard meta by allowing cards that hit for weakness against top threats to see play when they otherwise wouldn't, yes. But it also means that some matchups are just unwinnable, if you're playing theme decks or something weakness can get very annoying very quick.
It's more of a problem when it's incidental rather than using a tech lightning attacker in lost box for Lugia for example. Drapion exists thanks to the mechanic but that doesn't mean they couldn't have printed a Mew counter if weakness didn't exist.
There haven't been any Dragon cards in the first few Japanese SV sets, but it's likely they'll make a return at some point. The Magic analog is exactly what I was thinking of, they're different games sure and very few decks use multiple types of basic energy or basic energy at all but I don't see why they can't throw in a few more multicoloured cards since Dragon is pretty rare as is. They've even done it before on stuff like Mega Mewtwo Y EX.
Why is Galarian Moltres weak to grass when it's not even weak to bug? Sometimes it's just fucky like that.