I love hearing about unique takes on game mechanics. Someone recently convinced me that limited inventories are kind of abused currently and that unlimited inventory systems would give more player choices.
I hate not being able to pause a game, particularly a single player game. I think Elite Dangerous solidified my hatred of this, by not telling you the game is still running when you're on the "pause" menu.
"B-B-BU-BUT it's a simulation and you can't pause real life so it makes it more real"
It's a game, even if it's a simulation game. It's a toy for grown-ups. A very nice and fun and relaxing toy, but a toy nonetheless. It's not more important than a phone call, call at the door, crying child, hungry cat, partner who needs a hand with something etc.
This probably extends to being able to save anywhere and rejoin later, but I think that one is covered pretty well by everyone else :)
The problem with Elite Dangerous is that it is basically an online game, even in solo play and they never bothered to figure out a way for solo players to pause.
I think it probably has something to do with online play, though, since Fromsoft's multiplayer model revolves around invasion. Granted you can turn it off, so obviously there should be a pause option, but I have a vague hunch that the two issues are related from a dev/engineering perspective.