i would definately agree with most of that.. drifting is not racing. there are drift races, but it's not really about getting around the track in the shortest time.. most drift racing is more of a "keep up with me if you can" kinda thing.. you're still heavily scored on style, so it's not like you can just floor it and leave the guy in the dust. you have to look good doing it. usually the cars will alternate between the "cat" and "mouse" roles.. one leads, the other tries to keep up with/pass, then switch places and repeat.
but i will disagree about the grip vs. drift thing in regards to ability.. a real "drift" is hard to achieve. anyone and their grandmother can get the ass end to hang out, but getting it out there and still maintaining control over it thru numerous turns is incredibly difficult. a prime example of this would be in tandem or group drifting.. anyone can hang inches away from another car when the car is under control (grip) .. try doing that when only 2 of your tires are getting semi-traction at best. their ability to control that is absolutely amazing.