Yokozuna514
2nd Black Belt
That style of fighting (inside the pocket) is quite old. There are a few places in NA that still teach fighting that way but the majority of the Kyokushin world has moved away from the "stand and bang" cro magnon fighting.It changes your ability to sit a certain ranges and angles and to do stuff.
A lot of kuokashin is inside the pocket and if I punch you in the face and run away you never have time to set up anything.