It's not just what you are used to. It's physics.
When it's on the bud, as I said, you always know EXACTLY where it is and you develop muscle memory. You don't even think about it, it's automatic.
Cable on the other hand is not on the same spot exactly. You reach with your hand. Then, it's not always at the same angle, so I you feel for the buttons, then you need to find the middle one.. It's simply a more demanding action.
Also, i hate how they (whoever designs and manufactures these) changed how you skip to the next track. You have to long press the play button! Long press is the worst control ever in any system for whatever. It's just tedious. Double press is faster and less tedious.
They did not think through the controls very well.
That being said, since buds are smaller and lighter now, they are more secure in the ears, and they don't even fall out when running. So "surprisingly", they are better for jogging then the Sport version is
Also, AptX HD is not working very well. I get interuptions all the time. And i don't even notice difference in quality when streaming standard quality music (deezer) so I switched back to SBC.
FOR ME, just the controls are reason enough to recommend the older Sport version. If there are people like me, they should take that into consideration when purchasing one or the other model.