I'm not sure if delaying a game that is release ready for something like 6 months is too healthy for a small VN company. It's not like they can't release the game later on Steam when they finally get the permission.
Do you think that if they put the game on something like GoG for example and then months later on Steam, it would bring them less total sales than if they just release it on Steam.
Of course more shops means more sales but what I meant that Steam doesn't have any magical power that makes people buy the game from there any more than from any other shop assuming they are regular customers for both.