This sort of video will only be seen by people looking for it. It may get stumbled upon but doubt it will have much impact.
I was in the OS BMX scene from about 2004, stopped riding at 16 (in 1984). It was amazing how many people would stop us when out riding (especially the big London ride outs) and it never impacted the hobby. There are still people coming back into the scene today. Granted prices for OS BMX stuff is ridiculous, but that has only really got stupid over the last couple of years. Now all BMX bikes from the 80s are going for hundreds of pounds even if they are only fit to be a boat anchor.
Retro MTB is still at the stage where people throw out "worthless" bikes. That's my opinion anyway. Yes there are some expensive retro bikes but they come from people who know their rarity and value.
Everytime I've watched that I have wondered what it was, it seems to have full xt on from what I could work out, I don't know the model code but it was about 94 when it was all still cantis and said 'slr plus' on them I think!