Additionally, ODF was not ratified with SVG, MathML, XLink, Zip and other W3C standards all together at the same time. Instead the prior W3C standards were already well established and approved in their own right and in their own time with the relevant experts of their specific domains vetting it.
MSOOXML also incorporates proposed "standards" which failed in the marketplace and now is offered a "backdoor" to standardisation process by piggy backing this nebulous specification. (See VML vs SVG, and MathML vs Microsoft Office MathML)
So there is a myth being built that ODF and its constituent parts are just as large as MSOOXML, and therefore MSOOXML is OK. I for one would rather MSOOXML be even larger; to cater for unknown tags like "lineWrapLikeWord6" or a Macro specification.
However what troubles me is that the special relationship between Ecma and ISO should be abused with the fast tracking of this large specification.