The scrollbar is useless for short lists. If you miss it so much, simply scroll on the side of the screen - it's not like having a scrollbar on a touch screen phone is pure torture for your thumb as you always have to reach for that that narrow ant yet space eating part of the screen.

The scrollbar is useless for very long playlists or documents aswell as more and more office mice begin to have a kinetic wheel.

The only thing a scroll bar is good for are medium sized documents eg. 10-20 pages (on a phone).

The decission should ultimatley belong to the developer, but using it in most situations instead of kinetic = fixism/narrow mind.