That's incorrect. That's the issue with most RMR sports cars (the 911 isn't RMR it's RR), they tend towards understeer, then if/when you overcompensate you get snap oversteer. At that point, without ESC, it's just gone. When you see Tanner Foust drifting one all around the track, that's experience and rigorous setup. If anything, it's a LOT like the Cayman, dialed up to 11, with a side of habaneros.
I sat there until someone checked on me, still gripping the wheel. I wish I had a picture of the expression on my face. By the end of the weekend I was really comfortable in it though, you just have to realize that its limits are far beyond yours and rely on its grip, then use more throttle, which is counterintuitive with how sane humans think. Even Hamilton and Webber have smashed these before.