It's one of the reasons. Your reason is also very common, but I'd rather watch a video that isn't voiced if I'm looking for gameplay.
if that's his target audience. internet comedians have target audiences, remember? this is e.g why boogie2988 has a mature aged following and pewdiepie a younger aged audience.
@your edit: And yeah I understand if that is why you like him. It comes from involvement and curiosity I guess. Like I said I don't really like Badspot because of what I wrote earlier on this page, but that solely comes from the fact that you just stated: most of his post are judgmental and avoiding, it comes off as immature or uninteresting to me, but maybe you don't feel this way, and thus are interested, which is totally ok!
Just wanted to edit in that I'm not hating on this or his streams. In my opinion it is totally OK for him to stream and for people to enjoy it. I get it that people can get enjoyment from it originating from the feeling of involvement to this forum, which to some people is so much time spent on that it can count as a hobby.
I'm just sharing my own opinion on this situation.