How 'bout this....
When you can drift with the default setup and/or a realistic setup with realistic settings.....
.....then you're good at drifting.
Any of the LFSer's that have a fair amount of driving time can pick up drifting and look as good as 90% of the drifters I see on the servers if they were using these 'drift sets'.
I've watched driving instructors "drift" stock powered Mustangs with fairly soft and high suspension and make as much smoke, angle and speed as the majority of the real drifting I've seen. (D1 and other support drifting competitions at different races)
They smoothly transfer weight onto the front tires and by making a smooth turn in (to prevent wheel jerk understeer) and getting on the power, they are sliding into and through the corner with constant throttle modulation.
Watching 'pro drifters' flick super stiff, low, overpowered cars is not as difficult in my opinion.
Yes it takes skill, just like freestyle motocross, but I'm damned sure Carmichael,McGrath and Stewart could win a freestyle competition easily if the put their efforts into it. Just like drifting, freestyle MX was sparked by the nac-nac and can-can that McGrath used to celebrate after a RACE. People have misunderstood where drifting came from. Suuuper tight corners with a street car, on the street. In order to avoid guardrail smashing understeer they would break the rears loose. That isn't faster on the majority of corners in the world. It wasn't for show either.
A great driver, drift or race, uses more skill and technique to find that tiny space between over/understeer....balanced cornering! Its a much more difficult thing to accomplish.
In my opinion.