I think it's the stinkiest of all teases in the game as the idea of places to the North were in the game for quite a while with space and paths up there, as well as mods which allow access to previously blocked-off areas leading northward. And now in v1.5 to see it actually exist very early in-game yet not being able to actually access it until in the very latest of gametimes is... mildly annoying.
Mostly because I assume now I actually need to get to floor 100 of Skull Cavern. Bleah.
"Hello Robin, yeah, I need 9801 stone. No, don't ask. Yes, I'll be fine. No, don't send Harvey. Yes, I have 2 Immunity Bands! sigh... Yes, I'll take a snack..."
Mothers-in-law, sheesh!