is it possible to find two shiny Pokemon in a row?
There is a video of it here: two shiny Pokemon in a row.
The video you saw was probably a fake video.I looked at the comments.It could also be hacked with an AR.However it can happen but the chances of it happening are very very slim.
Yes it is very possible however the chances are probably less than you becoming a victim of a serial killer 3 times assuming you somehow survived all of them. Formula is P=[1/8192]^2=1/67108864
So the probability that you will find 2 shiny Pokemon in a row would be 1/67108864