Thanks for the feedback. However, I don't understand quite what you're getting at. Can you point out the wording you find confusing? I don't see anywhere that it says all records are equivalent.

Re: distinction between form and content, that's the intended aim of having separate "semantics" and (two) "syntax" sections. The idea is that to compare Values (i.e. to know which Value you have!), you work in terms of the "semantics" section, not in terms of any particular surface syntax.