Well, sure, that takes care of the symptom but not the underlying issue: comments shouldn't affect runtime! To put it differently, if I remove all comments from a source file, the compiled/interpreted result should be 100% the same. If it isn't, something's wrong.
In this case, the something wrong is that the specification didn't have the foresight to create a syntax robust enough to support actually upgrading the spec for real users. Discarding unrecognized syntax is a nice, robust behavior, but it doesn't cut it.