Fair point, poor choice of word. I meant it would be silly for it to be an obstacle simply of the bases of “I don’t know my way around cardinal directions”, and not to get into IF more deeply thinking you’d need this knowledge or comfort with a compass rose. I know it’s weird for me to say it’s not about cardinal directions when clearly it is - but transposed into the necessities of IF, we could say NSEW, Aft/fore/port/starboard, Widdershins/clockwise/rimwards/whatever. So it loses the stigmata that it may have for some people as regards cardinal directions. The directions could even be meatloaf/spaghetti/candy/santa claus. As long as it gets you somewhere.
As it happens, the language of the compass rose is a bit more internationally recognisable as a direction than foodstuffs. 
Point taken. Easy to use, though, doesn’t always mean easy to navigate. And even if they are easy to navigate, it’ll be hard pressed to create a actual world inside the player’s head, rather than a mere collection of fragmented rooms.
But some games do benefit from this approach. And some players don’t really care about a world in their head. So the compass rose is not a must, it’s merely a standard. But it’s a damn good, tried and true standard which I don’t imagine successfully replacing.
I’m all for innovation. If one can devise a way to introduce adverbs into a game in a controlled environment that won’t be frustrating for the player and hellish for the programmer, I’ll be first in line to try it and praise its courage. We certainly won’t get anywhere if people don’t try new things. The thing is, I picked up adverbs as an example because it’s a nightmare to go down that road. For everyone involved. Guess the verb becomes also guess the adverb, and often there is no appreciable reason to randomly “open door cautiously”, and if there is, and the PC knows about it, the player would balk - rightly so - if the PC did not automatically open the door cautiously. The adverb would be a roadblock, an extra step, a foolish one in most cases. For it to be an important part of gameplay it must be applicable in many other situations, and I’ll stop right here, because we all know the problems about adverbs.
My point in bringing them up is, you’ve brought up a fair number of points in adverbs defense, which all sound good in theory and in "would have to"s. Try making it. Then once it’s done, after all the unbelievable amount of work it’ll have needed, look at what you’ve created and ask yourself “How is this really any better than not having the adverbs in the first place?”.
I think adverbs are Betamax, and two-verb commands are VHS. I also think trying to find a new standard for the compass rose is trying to come up with Betamax while you’re already using VHS. I have admittedly limited knowledge of the whole Betamax thing, but a cursory look at wikipedia makes me think it sums it up.