I believe the answer is yes.
While I do not personally like the particular questioning of the RAW in combination with requiring a developer citation, it should probably be allowed. The highest voted response is informative, and clarifying errata may arise in the future.
Additionally, digging through archived and cached copies of Crawford, Mearls, or Gygax could potentially turn up a suitable answer. Tweeting at the developers is not the only way to answer questions of this nature.