I can think of several reasons.
First, it's a crowded space. An update never stays very long on the first page on the Latest Updates section and I think a lot of people use that to find new games. So your discoverability drops fast.
Then there's the fact the game isn't for everyone. Certain scenes being unavoidable and the choice being only picking which variation is happening, doesn't suit some people. (Choices are getting better and better as we progress but some players won't know about it.)
And then, comments here are rather clean and on topic. I've seen other games having a lot of waffles by the same handful of people using a public space for private discussions, not even always about the game. So a lot of pages doesn't necessarily mean a lot of supporters.
Now if we could see the number of followers, I think that would be a more interesting metric. But I hear what you're saying still, and I agree more talk wouldn't go a miss.