I'm still not sure about that. Like I said, it's just that there's so much dumb shit out there that people aren't bothering to look very hard. Hell, even Cryptolith Rite didn't get a particularly hard scrutiny, because doing inane shit in Standard has just been too easy for anyone to bother for a surprisingly long time.
That's sort of normal for a competitive meta, of course--as soon as you find the broken thing that needs to be fixed, the players are already onto the next one--it's just been exacerbated by a combination of the long rotation and how slow they were to react to the seriously borked condition of Standard.
Edit: Marvel having the specific "cast" wording is a real goddamn mystery to me, I'll admit. I honestly thought this was a solved problem in Magic's game design, as it seemed like a long time ago they figured out that "put on the battlefield" vs. "Cast" was a very important distinction and not a can of worms to open unless they were super extra double sure they had covered all the bases, and probably not even then. It's like they just went asking for trouble. I mean, you can even see the difference within the span of the block, as Planar Bridge isn't borked...