Temporary suspensions from activities exist in idol culture specifically so that the viewing audience can see that a talent has been "punished" for some transgression of the rules. There are ways for a company to "punish" or "performance manage" a talent without it being visible to the audience if they feel it necessary and without stopping them from creating content. If someone is being punished for breaking the rules but they don't need to be fired, I don't think that's a matter that the viewing audience should be made aware of (maybe a "we're dealing with it internally" message at most), and forcing any sort of suspension on a talent is making the audience aware of it.