imo if you want this kind of content out there, (and im sure a lot of people also do), you should record+upload or stream your own pov. this kind of content is done a lot better after-the-fact than live, because we can curate actually interesting parts. the chance of casters going to ur comms at an arbitrary time and actually experiencing the whole tense atmosphere of a team, and still having enough % of the game casted by actual casters is pretty low. from memory of this happening in the past, most of the live randomly chosen lets-go-to-comms moments were very boring, or in the worst case, people were gamer-wording.
i think in the best case, we could have recordings of the whole thing and go to replays or highlights of the comms, which is what most other esports streams do (for the above reasons + strats leaking). but imo its probably better for the teams to do this content themselves, because logistically we just do not have enough producers or enough time to do that stuff, and im sure a lot of the teams wouldnt comply with wanting to use a different mumble, people listening in etc.