I mean, FTL isn't the same as worldhopping, but it can be a natural consequence of it, depending on the method you use to worldhop. If you're going between planets in the CR, where there is empty space and no cognition at all, it'll be super compressed. Per this wob: https://wob.coppermind.net/events/87/#e5671 (it's long, so I won't paste it) you can literally "pass lightyears in steps" once you get far away from centers of perception and thought.
Of course, using ships will be significantly faster than walking, and more effective in other ways. That's probably the direction things are going to move for most peoples in the cosmere. But it's certainly not the only way it can happen.