The more options the better. Everyone wins.
In terms of a player-centric view, of course it sounds better. But it's unrealistic in terms of development expectations. Bethesda strives to make extremely cohesive games, and it hardly makes sense from a stylistic standpoint to add 3 completely disjoint forms of travel that undercut one-another's mechanical dependencies.
Not saying I prefer one over the other, but I'd rather have the one I prefer least on its own, rather than all of them at once.
and what it skips is the same thing movies skip, boring travel time, since it can only be used on places you visit, your only cutting of travelling the parts you already walked on.
Boring is subjective and hardly has to be constant.
Who's to say that absolutely nothing has changed since you last walked on that path?
Who's to say the creatures are all still dead, or that there are the very same creatures at all?
Who's to say you won't take path B this time instead of path A, and not necessarily by pure player-driven choice?
Who's to say in-game events or random-driven encounters won't be there, when they weren't there last time?
If skipping is what people prefer, then so be it. But it's hard to justify a skip mechanic due to the boring nature of the path already traversed.