One of the ways you can play in Tier 2 ( in my case is VCJ) is winning through premiers. But does a tier 1 teams' academy roster apply?
I'm saying this because " ZETA Academy A" has been killing it in Japanese premiers going 5-0 and the scores aren't close either
https://tracker.gg/valorant/premier/standings?region=AP_JAPAN
If the conditions are right they actually have a chance to earn the chance to qualify to VCJ.