Sure but the question is to know if this is the reason why one see so many NL Pure? Saying so without proof and without taking into account the success of said binoculars and their qualities hardly seems fair.
I quite agree... there is no data that most of us have access to, to prove anything with regard to the reason why any particular influencer has choosen any particular product.
For all we know, every pair of bins used by influencers
may have been purchased with their own hard earned cash. Beyond that, I'd say if any influencer continues to use a particular product, ongoing, that they are likely quite happy with that product!
As for NLs, I had a pair of 10x32NLs for a couple of weeks and was very pleased with the optical performance, and the focuser worked fine. They are excellent quality bins, alpha... as you would expect for the price. It was the barrel size/shape and armor that were less pleasing, for
my use. Certainly, I could get along with them just fine, but I preferred the barrel shape and armor "stiction" on the 10x32 SFs and the 10x32 UVHD+. The optical performance between the two was close enough to be a wash, in my view, so I went with the Zeiss and the Leica. All three are top shelf products, to be selected purely on one's own personal preferences.
If I were to guess, I say it's quite likely that many influencers
are using products given to them by manufacturers. And, they continue to use those products simply because they like them.