TD gives hard knockdown every time now, so it's really good for corner carry. It's a good option to have except I would only use it if I couldn't achieve the same result with wind.
In a nutshell Rachel's new grounded combo route does a bit less damage than an EX bnb but is way less wind intensive and can be done from mostly any starter (anti airs, air to airs, grounded hit, you name it). Her corner combos still do respectable damage thanks to lobelia wall bounce.