In my opinion the machine is not functioning correctly for a non-Eco rinse. What I see is the Eco rinse function running at the start of the rinse phase ... alternating sprays at slow rotation (25 RPM) with faster spins for extraction ... leading into an agitated deep rinse. Softener would definitely run out and be wasted at the first pause in spinning.
My IWL12 defaults to a deep/agitated rinse, has Eco Rinse as an option. On a non-Eco rinse it drains, revs up to 300 RPM, does a couple sprays, accelerates to 670 RPM for extraction, slows to 300 RPM and does a couple/few more sprays, 670 RPM again, then stops for the deep rinse fill. It never drops below 300 RPM for the spin sprays so as to retain the softener from draining into the tub until spin does stop completely at the rinse fill. It does pause spinning and rotate at 25 RPM for saturation sprays IF Eco Rinse is selected.
I've run into a few people who had this problem with GWL11 models, and maybe a GWL15. I advised them to contact service and have the control board replaced. One of the contacts reported back that there apparently was a programming flaw in his board. I've also heard that some agitator-model Whirlpool Cabrio units had this flaw (greetings, Jeff/Washaholic!).
I don't know ... maybe F&P purposely changed the programming but that seems unlikely because there's no way to avoid wasting softener in the rinse sequence I see in your video.