The biggest problem I have with using the berimbolo as a primary sweep (i.e. force the opponent to sit down with the sweeping pressure vs. entice the opponent to sit down with the standard De La Riva back take) is the leg drag pass when the non-hooking leg is placed on the hip like shown.
The leg drag pass on the free leg is one of the toughest counters to the De La Riva guard, and I have always had trouble with it when I bring my free leg towards the hip that I have hooked with the De La Riva. If I keep my free leg on the opposite hip, the opponent typically backsteps around in a circle to keep his balance.
I have been able to force the sweep sometimes with my free leg on the hooked hip, but it's been inconsistent and very risky for me with the leg drag pass counter. As such I've mostly abandoned the berimbolo as a primary sweep in favor of the more standard De La Riva back take against a stationary opponent. Only if the opponent sits down to counter do I roll into the berimbolo.
Any tips or insight you could provide would be great. I like how your video addressed misconceptions because there is indeed a lot of confusion and different guesses as to how the position fundamentally works.