There are a lot of flaws in EV. I think the biggest one I saw was that it is effectively no more useful than TLD's/subdomains. In fact, it's worse, because unlike domains, there can be multiple owners of the same corporate name!
To the people saying there is a paper trail... What good is that? There are "paper trails" for domain registration too. But that isn't very reliable and the same would happen with corporate registration. We know this all too well from how wealthy people use shell corporations to hide. And I'm sure there will be plenty of places around the world where it will be easy to incorporate for bad actors, even if some places do a good job of creating a paper trail.
Fundamentally, this is a hard problem to solve and I really don't see EV solving this any better than domains.