The way games like this need to advertise is through you tubers who know the game kinda well. As soon as we get someone with a gaming commentary channel with a lot of subscribers who actually understands and takes the game seriously (not whining about you tubers who don't btw, I'm impressed that they even try making videos out of such a dull game) we would probably get a wave of popularity. I don't mean specialist toribash channels which started off doing toribash and who's subscribers all already have the game because that tends to require you to already be interested in toribash.
Toribash does well out of its novelty but for a lot of people (especially those who hear about it through youtube) it is only that, a novel and kinda interesting idea which is funny to watch but not actually that accessible as a game. If they saw a you tuber who they respected being kinda decent at toribash and taking it seriously they would approach it like a proper game. That is what we need, not advertising toribash as something it isn't or as a cool idea with not much gameplay (we either lie to make it sound a lot cooler or we don't have time to explain the complexity of it and end up showing it as a boring turn based physics simulation which is kinda funny to fiddle around with).
Maybe I'm wrong. Anyway, I'm not sure Toribash can die, it was never really alive in a big way so I'm not too worried.