At many clinics, the doctor you meet is not the one who operates.
At many clinics, the doctor you meet at the consultation is not the person who performs the surgery. The consultation is with a doctor; the procedure is carried out by a team of technicians. This happens, and it is not always disclosed.
The single most useful question you can ask: who opens the channels personally? Because opening the channels sets the angle, the direction and the density — which is to say, it sets the result.
Ask two more: will he stay for the whole procedure, or step in and out? And can I see cases he performed himself, rather than cases from the clinic in general?
If the answer wanders, that is an answer.
What does your case actually need?
The video explains the general rule. The number that applies to you is settled after an examination — the grafts your case actually needs, not a figure quoted before we have seen you.