Which is fine to a point. Unfortunately, the whole resource management issue goes out the window at higher levels which is, I thought, what we were talking about. See, the 1st level fighter and the 15th level fighter don't have too different chances of success of throwing that rope. 20%, 30% difference by and large? Meanwhile, that 15th level wizard has so many spell slots that burning a low level one, or, simply using some ritual is such a trivial expenditure that it isn't really a resource management issue at all.
Let's be honest here, how often is a 15th level caster going to blow his or her full load out of spells in a single day? That's one hell of a lot of destruction.

And, heck, you keep insisting on levitate. Why? I can mage hand the rope 30 feet and hook the grapple, silently and successfully every single time. Doesn't even cost me a resource.
What I would like to see is high level fighters be able to have a sort of free form power which lets them do amazing physical feats as a limited resource. If we're going to allow low level casters to bypass the DM to surmount challenges, why not let the fighter types do it too?