It was an article about C++11 feature compliance. You're saying that no one should be allowed to write such an article unless they're also prepared to do an (essentially unrelated) benchmarking study?

And ICC tends to do quite well, though "twice as fast" is pretty spun (I'm sure there's a vectorizable routine somewhere that does that, certainly most typical code is going to be more in the "even to 10% better" range).