I too like the way they are handling shove, it's fun. Also satisfying, especially when you've been dealing with an archer and you just rush up there and spartan kick them off as a gentle reminder to stop. I have had shoves resisted though, so there is something there in terms of a saving throw or a contested check. I just can't tell exactly what is being used when they resist.
I don't understand people wanting it to be removed since it is a thing in 5e, albeit the 5e version only has you being pushed back 5 feet.