why this guy like using index finger + thumb so much

[swagmaster420x]

[liszt1022]

Wow this really bothers you?
You could try asking him.

[swagmaster420x]

isnt it kinda awkward? if it were played at high speeds, im pretty sure other fingers would be needed for decent fluidity

[Bob]

Kind of bothers me too.

At first I thought it was professional, I guess since it was black and white.

Then I saw the 12 stuff in the right hand. And that pinkie jut and then hanging on a key like that with the pinkie.

Second video has an out-of-tune piano. 

Nice enough tone.  Pleasant to listen to, except for the piano tuning.  I don't think I'd want to watch this guy to pick up tips, except for how not to do some things I guess.