What bothers me is that if a mainstream reviewer benchmarks ICC compiled programs, well, that isn't unfair. Real world programs are compiled with that compiler. AMD processors actually WILL under-perform on certain programs because of this.
How much ICC compiled binaries represent ? I guess on MS Windows it's the vast majority so you're right[1] but on other platform it's probably GCC/Clang, and there neither Intel or AMD are favorited.
[1] or maybe not ? are MS Cxx compilers inheriting from Intel ones ?
That leaves a bad taste in my mouth.