It's also weird because, as mentioned in that linked thread, some of those guys got legit roles, under their real names
, in other dubs recently including FUNi's dubs of Resurrection F, Xenoverse 2, One Piece & Fairy Tail*. If Toei & Kodansha* has such a problem with them then why have they not jumped on FUNi for bringing them in for dubs of their other shows (and video game but I guess that's more Bamco's call than Toei)?
* - Mentioned because if this post
is accurate then Kodansha, not I.G., was responsible for Attack on Titan Abridged getting shut down.
As for Kai, I would say FUNi's also to blame because they had 4 years, since the dub first started being produced in 2013, to clear this with Toei and if the Flash pseudonyms were their idea to try and get away with it then they should have known better because, just like with certain voice actors who use pseudonyms for non-union, ecchi & hentai dubs, fans will find out eventually and it will spread (especially in this case because it's TeamFourStar).