Well, first all this isn´t done with public acces servers. Second, there are no stackholders, gaijin is a private company. Third, public tests for updates this close to release are general done to stresstest, as the content is practicly done already, just some polishing needed.
And for a Stresstest, gaijin isn´t attracting enough players.
Like, right now, i would love to play the Yamato on the testserver. But if i go now play on the testserver, i gona spent the next month grinding japaness bluewater, just so i can play the yamato on the liveserver, after the updated dropped.
Combine that with teh hassel to get on the testserver, downloading a whole different build of teh game and there is no reason for me leave the liveserver.
So, something needs to happen, cause with the current low playercount, the testserver is innefficient (as we could feel countless times by now).
Gaijin should add the test as events. Like the recent test of the SAM sites, the first tests of the FOX-3 Missels and the test of the Sever Damage mechanic.
Or atleast keep the accounts synced on the testserver and live server. I´m not going to unlock the Yamato twice, the grind is already bad enough.
Like, seriously, to gaijin. If you want people to test your stuff, you need to reward them for it and not a small reward. Letting them keep the 5X progress would be a serious reason to switch over to the Test Server.