I'm not sure I'd call it the worst addition to the game, but I will say I don't really favor it.

I was fine with two speeds in cities, Sprint and normal. Adding in this third speed that's somewhere between the two is a bit irritating, at least so far. It's a muscle/visual memory thing, and that in-between Jog speed is messing with it.

Also, Jog programming seems to be a bit janky, because while Sprint will still be active even after you use an Aetheryte crystal to move to a different location in a town, Jog is removed by using an Aetheryte. If Sprint is still on CD when you use that Aetheryte, then you're stuck with normal movement speed until Sprint is available again. I feel like that must be unintended, but who knows?

All in all, I kind of wish for a toggle solution like PvP apparently has (I don't PvP, so not exactly sure how that works in practice, but it sounds good), OR a toggle for this new "Jog" buff to just shut it off if you don't like it at all.