The second you remove threading and SIMD from those examples, they get rather close to JS. At most, you are making the argument that killing JS-SIMD for WASM and not adding native threading support was a mistake.
AsmJS coercion hints still work, so not really. Monomorphic code and some optimization can take you a surprisingly long way toward good performance. You certainly won’t find that in most untyped languages.
Anything else?