First to understand.
JJ is the 4th best hand and is among the 6 or 7 premiums.
I think that of the
hands you put in the video there are some that are quite poorly played, for example the allin payment against AA after a player's role in Button.
Afterwards the rest of the hands are normal. With JJ against A3s you have a good chance of winning, but hey, anyone can have a badbeat.
The only 2 pairs in hands that are played differently are AA especially and KK.
In many hands with JJ you come across a closed straight or a set and make a very strong hand.
Greetings