So far seasonal events keep demanding edo jinchus, so even for the sake of some free items/points its worth getting them (han, yagura, fu so far). As far as regular treasure ninjas go, pretty much neither of them by itself is meta.

Kazekage is sweepable, killer bee is in ninja scroll, sasuke and ay need 4* for bt to be usable, sus itachi isnt good in pvp anymore, lineups with edo hashi arent meta anymore either. All gnw treasure ninjas except sasori and madara founder arent really usable nowadays and sosp naruto is better version of kurama (even if he has bond skill).

Other kage treasure ninjas- will see what they can do when they actually get skill trial.

Truth is we are way past the time, where treasures gave you meta teams. Its all about event ninjas for a really long time, treasures just have an option to randomly provide support ninja (kazekage, bee, sasori, madara) and help getting 80 out of 180frags for carry ninja (sasuke, ay). That being said, edo jin treasures are propably the closest that can give you impression of having meta team- kushina, yagura and roshi. Keep in mind those ninjas will start being relevant again only when you get their skillbooks/skill trial when it gets released.