zelda's weakness is in her weight + size, since she's fairly tall and, while floaty, is still easy to kill.
zelda can't approach either, and, while din's works on a few characters, most don't have a problem with it since it's a) easy to dodge, b) worse than most other projectiles (in a firefight), and c) leaves zelda open to average and faster characters alike if the timing is off in any way.
basically, zelda is a punishing and spacing character. she's reliant on her opponents doing the approaches most of the time and her walls of hitboxes. once you get past them, she's easy. having a slick recovery only adds to her cat and mouse game, rewarding the opponent well whenever she is 'caught'. her recovery would be just like everything else she does, in a sense.