With the 110m hurdles, yeah, being taller and more explosive is definitely helpful. But with the 100m hurdles, the hurdles are way lower, in fact lower than inseam height for a lot of women runners. The hurdles are also way closer together.
If you take a 6'1" tall person who runs 11.7 (me, a man) and a 5'5" person who runs 11.7 (a man or a woman), that shorter person is likely to kill me in the 100m hurdles, because my stride length running at elite women's hurdles speed (lets say 12.5) is too long. To run at 12.5s 100m speed while going over the hurdles, I will be forced to really chop my stride to a very unnaturally short stride length. My hurdle technique is fine, I was passable over the 42" hurdles, so I can run straight through the 33" hurdles without any loss of speed. What kills me is trying to get 3 steps in before the next hurdle.
Unless somebody was so fast and strong that they could 2 step the hurdles (and alternate legs), being tall becomes a disadvantage.
I say this from experience, when I've screwed around in practice over the 100m hurdles because a female training partner was using the adjacent lane, I really couldn't get my steps down fast enough to not barrel into the second hurdle if I was trying to run at full speed.
Watch elite women's hurdlers, they have no knee drive between hurdles, because they're forced to shuffle between hurdles, and so even these 5'5" to 5'8" women are struggling with crowding in the hurdles.
Another way to think about it: your stride length is set in stone in the hurdles, because everybody fast is going to 3 step the hurdles. If you're a certain height, then running a fast hurdle race your natural stride length is near to what the hurdles force your stride length to be, so it isn't a problem. But the farther you deviate from that ideal height (or rather leg length), the more difficult the hurdles become, because you just run out of room.
Now if a 6'8" transgender woman started hurdling, then maybe they'd have a chance, because maybe now they're tall enough they can just 2 step the hurdles the whole way.