> Making a game or professional software in it essentially equals to publishing full source and assets online, ripe for taking by any unscrupulous party.

How is this true? seems to me that webassembly looks kind of equivalent to the output you'd get from an x86 disassembler for an x86 native program -- sure it's editable, but it's certainly not equivalent to the original source used to produce it.

To put it another way -- Webassembly encourages theft exactly as much as any other kind of DRM-free publishing; and you can add anti-piracy measures to it in the same way you can with other software.