I found that H.T.S. test to be quite fascinating. As to how the fellow could pick out the tone of their own equipment in that test. Must have been a certain tone they were familiar with on that brand.
Though all that matters is you are happy with your own choice, in your gear.
Exactly ... For most people, I would recommend NOT doing blind tests because this is a hobby for fun. Blind tests are work, and they are tiring.
When we did a blind speaker shootout here 9 years ago, after 2 hours of testing, the guys were exhausted. And this was with several breaks.
After 2 hours of actual A/B switching between speakers, everyone wanted to drink. I jokingly mentioned going back for more listening tests, and almost got myself seriously hurt.