no thats not the only way scott. Its definately a style. Look closely at 2.34 he presses the autofill button which can be programmed to trigger the next variation up or down. The Korg can have up to 4 Variations . You can see that he checks very shortly after,that the next variation has been triggered. You can programme up to 32 bars in any variation if my memory serves me correct . what he most likely has done is programmed those progression for the end of the song so that they have looped up to the maximum 32 bars and then go back from Bar 1 and start again. He can then solo forever whilst it is looping and if he has programmed up to 32 bars in that variation you wont even realise that the style has been looped or where the loop has ended as he can play nice bass and drum variations within 32 bars adding the illusion of live ness before you even realise that it looped back to Bar 1. Therefore he can do the guitar solo and pitch bends etc to his hearts content. Notice that in his guitar solo he never ventures into the lower register as this is quite possibly because the way he has set the keybaord up, it will recognise chords in the left hand playing area.

Its a technique i use many times so that you can keep the apparent liveness of playing that a true sequenced track cannot allow.