That’s one of the goals here. There are a lot of mounts out there and it’s strange to have a “wrong choice” when out running around. You’ll easily be able to keep the ability just as you have it now but there will be other options that you (the player) can make if you prefer something else. How you about the world, where you often go, and how fast you like to escape from things could all contribute to what works best for your playstyle.
There are a few extra notes so like Death Knights can do waterwalking via Path of Frost (and Shaman with Water Walking). That should help empower these classes a bit and help make them feel a bit more unique.
I’m not sure what the price of the waterwalking shoes will be offhand, but it should be pretty affordable on the Anglers vendor. We’ll have the PTR up soon™ and look forward to hearing your feedback on that.