Town of Salem and Space Station 13 are pretty similar games in terms of social deduction with different factions, so I thought I would compare the two, for the sake of example.
Town of Salem would generally be called 'NRP' to 'LRP, there's no rules to act like anyone, as long as you do your job (role abilities) and don't ruin the round of everyone else, you are golden. However, It's left up to the streamer to decide how they want their round to be; Some streamers hide most information from the viewers, some would host private games for viewers only, others would just play the game normally and leave everything visible, with hopes their viewers aren't gonna abuse said information.
We seem to limit streaming on LRP as if it's protecting streamers from themselves, as if they aren't knowing what they sign up for, yet I could go on Twitch and see Town of Salem streams showing their roles and all other game information
A closer comparison to SS13 would be RussStation, their rules are similar to LRP, yet streaming is allowed, and typically ends up being fine (It being a streamer's personal server and all).
In general, my argument is that streamers should be allowed to choose whether they want to play MRP with the higher standards, or play LRP where they should expect things to be more erratic (which is normal for LRP), or even play both via Server hopping. They should have the freedom to choose, rather than be restricted to a single server, that they may or may not want to play on otherwise.
This is mostly my response to one of our current headmin's view on streaming, as it was the only argument I was able to find that was against streaming on LRP:
It's alright for Medium Roleplay servers since you're expected to conceal metainformation and griefing through stream sniping becomes rougly about 10x more obvious (especially considering the fact that you can't outright kill, and the play-to-win mentality is really dampened there). I think it's in a fair spot right now, and I know that there were some concerns over timing+scheduling+admin coverage, but we already have the Stream Manager role which I believe still has authority over those matters.