This discussion seems to be less about dungeoneering and more about general grittiness. Not all of us want that, I would be sad if this became the standard mode of the game.
There are rules in the DMG for changing what a long and short rest is that can be used. A series of similar optional rules could be added to achieve the same goal. But DnD in all its editions is a pretty heroic game by level 3 or so. in 1E, many campaigns never reached 3rd level, and that I think is the reason 1E games were considered gritty. But in the end, perhaps DnD is not the best game for this kind of campaign. A game with less return from experience, such as Rune Quest, might be more suitable.
One thing I do agree with is that darkvision is an issue. For me it is much an aesthetic issue, and an issue of racial balance for rogues. Halflings and humans, the most iconic rogues, lack darkvision. My solution is to negate darkvision's ability to see in the dark. Dim light functions as bright light, and that is the entire effect. This makes orcs, goblins and such dependent on light, which I feel is much more aesthetically pleasing and true to genre. But yes, it is also something that disrupts dungeon crawling and basically bans races who lack darkvision from such campaigns.