Name three “bad” spells and I’ll tell you their niche. In any case the point is that with favorite meta you can stack it high and with non-spon cast it without full action.
Lulz, in a game like WotR where you have 12 septillion Feats, Mythic Abilities, items, Metamagics and on and on and on, sure, you can find some niche for most Spells. But that's just it, they're niche and you're better of being able to cast more Spells per day that will actually be universally useful throughout the entire game than finding some hidden use for that one super-sikrit-combo that you will use once or twice during the entire game.
You can’t use Meta on Sorc without using a Full Action
And? My Sorc usually stays in the back and flings Spells, I'm not sure what the problem is with using Full Action for it. I don't really need to reposition him once every Turn.
Name three Sorc/Wiz only spells you think are bad.
It's not that they are straight-up
bad bad, it's that other Spells found at the same Spell Level outclass them by leaps and bounds, to the point that there's no reason to consider them at all, aside from some niche usage that will be useful like 2-3 times in a 100+ hour video-game.