Yeah, I was happy to find the video too; this is a perfect example of "show, don't tell"
Sorry, the tipped brush is not good for a dog with long hair. It will "catch" and pull... and the plastic tip will create static, which pulls as well.
Could you return the brush and see if you can find one that does not have tips at all? I know those are not easy to find at regular stores such as Petsmart, but if you have a Global Pet foods or such, they might sell it. Other than that - try on-line for grooming tools. I have to admit - I rarely use the pin brush - I find the comb much easier and thorough although is definitely way more time consuming.
Let us know how you're managing
... and post pics of the young lady after her grooming session, so we can admire your handiwork.