Changes in riding styles and techniques

Has the advent of technology (tyres, brakes etc) changed riding styles and techniques in recent years?

I came across an article recently

http://www.cycleworld.com/2014/08/04/motogp-racing-evolution-of-motorcycle-riding-styles-part-one-of-three-by-kevin-cameron/

that seems to claim that the riding styles of today are very different from as recently as the 1990's (ala Mick Doohan).

What do you guys think? Twist the body like Doohan used to do? Why is that not a good technique for today?