Sure, but should they not be either using polyfills, or not use code that is only supported by one browser? I understand how a project like Allo Web would want to use latest streaming api tech, but a documentation/product launch page doesn't need crazy new web tech.
They didn't even test on anything other than Chrome, because they don't care. That's the problem. Not that it was missed, but that they didn't even test in Firefox.
