And there is already an esports olympics style event being planned.
Aka. the WCG? - which was years ago.
@OP
More people watch people playing games then ever, this has been proven by the huge increase in demand of Twitch etc.
The relation of numbers also viewing e-sports is hard to measure, but given the right environment, be that niche or not, they also seem to have seen in increase. Is this due / direct correlation to the first point? I can't answer that.
From the first point though, e-sports coverage has evolved to the more "accepted way" of broadcasting. E.g. overlays, studios, HD Cams, presenters, analysts etc. I actually sit in this world also as a past/present TF2 commentator
Could this new accepted format also be due to money being chucked into events, e.g. Overwatch is a good example. Would you expect an event with a $300k prize pool to be presented / hosted by someone wearing shorts and swearing?
From what I've seen the current promoters of said coverage / firms e.g. ESL hosting, do a very good job with assets available. Of course, some exceptions apply, e.g. ESL fairly big budget.
That said - depending on the commentator, presenter, the event, their approach will differ. Is it maybe you just get a bit bored and want to see more action?
In regards to eSports being healthy, ups and downs with everything. I personally don't see how some companies see ROI.
Will this change? Time will tell...all I know is that I won't be quitting my day job to take up eSports commentary.