It would make more sense to have Dragon Leap manually ground targetable. As an escape though, I dont know, its already pretty slow in the movement department compared to other attacks that bring you towards your enemies and the default max distance isnt all that far.
So currently I dont think it will make much of a difference, but it would make its activation just a tad faster to me. As i kind of find having to have to target an enemy to use the ability a bit annoying. But it does guarantee a hit since of the soft lock.