Although probably not a HUGE change, 30 is a lot more important of a number these days than 20. I'll take what I can get, I guess.
Ye definitely with all the super powerful moves, naturally resists should be higher
TBH I wish weaknesses and resists were completely removed in favor of types being distinguished by their compatibility with items and abilities and just dictating a general playstyle rather than being like "grass v fire? guess you lose kid". It'd be like if in MTG Blue just has a massive advantage against Red by default.
It just makes unnecessary situations like if there is a really good Water and Fire deck in the meta, or really good Fighting and Dark deck at the same time, the Fire and Dark decks have their consistency flushed down the toilet as they immediately lose if they go against their counterpart deck, and throwing in anti-weakness cards just wastes slots that the Water and Fighting decks don't have to worry about, so even if you have Weakness Policies, Weakness Guard energies, etc you're still at some kind of inherent disadvantage.