I've had a thought for a few days now:
Because this whole game is a beta-in-progress, wouldn't it make more sense to allow everyone access to the newer betas?
There's bugs and glitches that even the selected beta testers might not pick up on that any regular player could, and by the time you release 2.1 you're just going to have that feedback hit you in a massive pile; Especially with more people joining in to play. With more people playing that's more videos that could be made to advertise the game as well.
But also, there's an awkward pause for normal players vs beta testers who have made videos on the game like Gamers Nation in terms of the new gamemodes. The beta testers have showcased the Yangire mode in full, shown all the possible endings and have even made speedrun videos with all the freetime before the official 2.1 release. Specifically with speedrunning, the beta testers have the highest advantage in getting low times since they can spend the longest time figuring out techniques; And by the time any other player can play, the speedrun times are gonna be impossible to beat.