I think we'll need to be deliberate and specific in order to have a useful discussion here. People are throwing adjectives around like kids in a snowball fight and someone is going to snow in their eyes.
There's a lot going on there in the bolded term. Genre emulation is a thing, sure but what work is 'narrative' doing on top of that? I ask because the word narrative comes pre-loaded with a bunch of other ideas when it comes to discussing RPG mechanics, and we are discussing mechanics specifically here.
That pesky word again! I think it's actually a somewhat bold claim that D&D, as it was originally conceived, had anything at all like an 'intended narrative', and even bolder that the mechanics somehow don't match it This suggests that 'narrative' was the essential or central thing that D&D (and this RPGs more broadly) are supposed to be 'about' and that the designers of D&D somehow missed the boat. This seems to make a lot of assumptions about what the core task or goal of RPGs are and what the job of the mechanics of RPGs are supposed to be doing.
The word emulation is also, IMO, being in used in a very broad way here and causing some mischief of its own. One barrel of monkeys at a time I suppose.