The clips of him skating were probably all filmed 24fps but the filler shots (hill bomb, phone in hand) shots look like they were filmed at the same frame rate but maybe scaled down to 15fps and slo-moed. Not sure what the point was and not sure if it was really necessary...
Speaking of art skool... total over-analysis, and probably off topic, inaccurate, and obvious, but to h00man, most of those supplemental shots looked to me like they were filmed with a different camera (black magic?), perhaps multiple cameras. The change of speed and possibly frame rate added a bit of diversity into it in my opinion, I thought they were nice. The phone in hand shot was funny to me, did you see ishod's face in the phone? Seemed like goofball Ishod to me. I dunno, having a justification for second long supplemental slow motion clips in a minute-long skatepark roadtrip snippet seems slightly redundant to me, but even so I feel like those filler shots showed the different experiences of the trip other than just skatepark transitions, and did so with a slight variance in appearance, highlighting and differentiating those clips from the rest.
Edit: perhaps you're saying the skating spoke for itself and you would have preferred the edit without them?