EVO isnt going to have a LGL so i dont see the point.
Villager is by far the closest thing to "broken" so even if it's legal for EVO, I think it's best if people get discouraged from using it as a long-term strategy, and the LGL should be common-place after EVO.
Currently, the only consistent answers to the ledgestalling is character-specific and some are pretty janky. (Many of which require giving them their 15 seconds while waiting out the sapling)
It's definitely not likely to win EVO or anything, but it is an abusable gimmick that is toxic for the early start of an already shaky meta.
It also is technically possible to do this in default with lucario by switching between the ledges against characters who can't cover enough raw ground quick enough to punish it. (ganon, robin, peach, etc) So it's not like this would only fix issues brought by customs, it's just easier to do with villager.
And no, the ledge grab limit of 25 will pretty much never interfere with general play. Even including unneeded ledge trump attempts, ledge cancels, and general ledge play, players don't seem to exceed 10 ledge grabs per stock often. And I've never seen them exceed 25 at mid-high level play. (though my data source is only games that went to time at apex)
This will however, effect low level play with players who don't understand ledge mechanics. Those are the only ones I've seen people go past 25. (Due to the opponent for some reason not taking their free punish when they regrab, and people abuse this)
I don't understand why Zero gets a bad rep. The guy puts in a solid effort in to the game, he has very valuable videos trying to teach people how to play (which is more than I can say for most top players), his attitude is always optimistic, and he just loves playing some Smash. The guy pulls out Falcon in Grand Finals. Hopefully peep's cut him some slack over time.
The average player doesn't like objective play.
I wish there were more players out there like Zero and m2k trying to push the meta to it's limit to see what's actually the best. Especially when if the best is proven "broken" nintendo can fix it. If other characters can't function in an objective environment, they can fix that too.