This attitude is completely baffling to me. I certainly understand if you don't want to use those other stores and loading options, but I feel like everyone has Stockholm Syndrome thinking it's a good thing that alternative ways to run software on a device you own should be forbidden by our tech overloads. On a site called Hacker News no less!
As a user of said stores, I understand the frustration : because of exclusivity deals, some games are available on shop x but not shop y, and you end up with a fragmented view of your games, different rules etc.
Now as you pointed out forbidding alternative ways is not necessarily the one true solution !
Seriously, WTF???