The FSF is very clear what they mean by "source code"; the GPL defines it as "the preferred form of the work for making modifications to it". Decompiled .wasm i

The FSF is very clear what they mean by "source code"; the GPL defines it as "the preferred form of the work for making modifications to it". Decompiled .wasm isn't the preferred form (as you say yourself it's not going to be as readable as the original), so it's not source code, any more than the output of a Java decompiler or a disassembler would be.