I love it. I've seen it on street motorcycle vids as well, but not for kayaking.
It was nicely edited and you really made the most of multiple camera angles from two videographers.
I thought the flat water views were distracting. You were trying to hold the camera still and it showed on your face.
Not so on the drop footage (snow and water) where you were concentrating on where you were going. This rig added a lot of interest and perspective to the footage.
I think a full video shot with this footage would be "too much" just like a 100% traditional helmet cam vid is boring.
The paddle cam and the pans of you and your partner launching were valuable footage in the final edit.
Usually "driving" video is boring, but again I applaud your use of multiple camera angles--it held my attention.
You clearly did a lot if different camera setups--a lot of paddling video wannabes like me can learn a lot from you--it is absolutely worth taking the time to do.
The "dolly shot" of the helmet rig was very cool for a how-to vid but wouldn't be as interesting for a sponsor (i.e. Subaru) vid.