Dwarf Step TP used to not root you in place before you teleport, and give you a temp buff that gave you very slight hover both before and after you teleport, in essence giving you a bit of manuerability when you 'port, since you could still move about in both cases, while the regular teleport would root you in place. Now in functions exactly the same as a regular teleport, it now roots you in place and doesn't give you hover.
I assume, that's an intended change, but a one that makes it feel even less manuerable, than before.
Did I say 'root' enough? Root, root, root.
Also, probably a bit late to complain about it, since the patched released, but I will anyway.