There is nothing wrong with marketing a product with influencers but unfortunately, our "influencers" and media in general do not have the basic ethics or integrity of transparently disclosing these marketing deals. Not disclosing sponsorships or paid promotions should be illegal and a finable offense here in Pakistan as well like it is in a lot of developed countries.
It might just be that Manj sahab isn't directly being sponsored and his opinions about the H6 are absolutely genuine, but the other "owners" (I don't know who these people are, but I assume they are other local influencers?) in these videos definitely seem to have some sort of promotional deal in place. A lot of the times, it just shady marketing agencies behind this kind of content as well.
A decade+ ago, I also used to "review" tech products and even back then, the local marketing agencies for these brands would try all sorts of tactics to sway your opinion on their products to something positive. And when I still would call bad product bad, they'd throw fits and would complain why I wrote negatively about their product even after they "fly me to international events and give me 5 star hotel stays" because this was usually enough to buy the opinion of our traditional reporters and journalists.