Compilers aren't different from pretty much every other kind of software, for which it's generally painfully obvious that two programs that target the same data _format_ will not necessarily output the exact same _data_, especially when they have wildly differing end goals.
I don't think every article discussing benchmarks has to restate that the differences between programming languages are not just syntactical to be informative.
I don't think every article discussing benchmarks has to restate that the differences between programming languages are not just syntactical to be informative.