Communities are capable of organizing. Further, I submit that the needs of the larger community are served by a flexible dump. Subreddits and social circles are not the larger community - they're small, highly active communities.
/r/GameOfThrones has 484k subscribers. /r/HouseOfCards has 50k subscribers. These are not "small communities" and there's no reason that there should be 9.5x more interest in GoT than HoC; they're both gritty political thrillers and HoC usually has more episodes per season than GoT. I posit that the GoT sub is much more active because the way that HBO releases content makes communal watching and discussion much easier -- you don't have to worry about trying to coordinate episode watching times between 500k people, and people who can't make the official air time can avoid for 1-2 days before they find time and can get caught up.
I know Reddit and subreddits fairly well - most subscribers to a sub are silent and passive. 50k is a small community. Stacked against the whole of the viewerbase, 50k is even smaller a community. I posit that GoT is much more active because the show draws on a hugely engaging series of books that has been building a fanbase for a decade - an excellent reason for an 8x difference in size.
Bluntly, you're not making a compelling argument for taking flexibility away from the silent majority that watches and doesn't aggressively engage in public discussion. You're arguing from a position where the putative needs of that minority is the only thing that matters.
Anecdotally, I have three different friend groups I talk to about Game of Thrones. Everyone is always caught up, the line for book spoilers is obvious, and as a result its a common conversation topic anyone can join in on. Conversely, no one talks about House of Cards. We've tried a few times, but after a bunch of "I've watched it all," "I'm on episode 8," "Oh, I'm only on episode 5," etc. we just stopped bringing it up.
At the end of the day, television is just entertainment. And I get a lot more entertainment from being able to discuss drip-rate shows with friends.
