The video supports the notion that the person on the shroud is Christ.
To understand how the video draws its conclusions, you have to understand how the researcher uses a process known as “photographic restitution” to reconcile the projection of light into various patterns on the cloth; and, then, how it allows him to create clearer picture of what it contains.
The problem is like - if you had an old pair of jeans, even with fades and bleached spots… the actual pattern of the fades and bleaches, which are deeply embedded into the cloth, are actually obscured by the weave of the cloth… or, in other words, you’ll see the more superficial aspects of the weave create a conflicting, linear pattern, which obscures ones perception of the overall image… So using a photographic restitution process to reconcile the orthogonal versus parallel projections of light from the various objects on the body he actually extracts several layers of images - which move over time, as Christ was resurrected…
I do have some reservations about the conclusions, but some of the results are incredibly clear; and, if the whole theory holds, they definitely refute any existing notions that medieval photographic techniques may have been used to forge the image…
As far as the “Egyptian underwear” argument is concerned… it’s off-topic… I was just interested in knowing the name of the garment, so I could google it… However, Christ was known for being very different and cross-cultural, and the Holy Family even spent time in Egypt - which wasnt so far away… and, if it seems so likely to anyone today they know the full story of how Christ looked, what he wore, how his voice sounded, how he walked, and so on - I’d call it presumption… and, yet, if only a possible glimpse at differences (from one’s own perceptions) into the actual God-man’s life confounds one’s faith, then I can see where the pains of purgatory would be all the greater in forming an acceptance… no kidding…
BartholomewB… I’m not accusing you of being closed-minded. I generally like your queries and insights. My point is more like - we just dont know…

this also seems more of an archaeological issue more than a Theological or moral one…