To me, profiling is like taking a snapshot of something with a camera.
There are certain objects/people/locations that you take pictures of for either your own use or as a business without rights clearance or royalties.
There are other objects/people/locations that due to legal restrictions are not considered OK to do that (i.e. US Vietnam Veteran's Memorial, certain museum collections, etc.).
The argument that this YouTuber makes is a bit of sour grapes. If you build a better product, there will always be an audience that will want the physical object and not the photograph of it (to extend the analogy).
Of course then the price of the object has to reflect this new, narrower market.
The whole argument of buying an amp, profiling it, and returning it to the point of sale seems to be a bit of a non-starter.
There is no way to provide accurate metrics of how many people actually do this, as opposed to people that bring an amp home, play it with their gear, and decide it is not worth their cash.
The argument almost reminds me of the RIAA's stats on people using blank cassettes to pirate vinyl or the MPAA's original stats on people who would use VCR's to pirate broadcast or for sale video content, back in the day when there were legal challenges to that technology.
Once you kick the tires on such stats as for as the methodology, you see just how suspect those numbers are.