According to this line of thinking, if everyone were forced to use Microsoft Word for document interchange, then that would provide interoperability. Except that it wouldn't, because interoperability implies at least two *different* things are are operating together: self-interoperability is trivial. Version 2's "homogeneity" is better described as a monopoly and a monoculture - and the last two decades have taught just how dangerous those are.EU Wants to Re-define "Closed" as "Nearly Open" (via /.)
It's not hard to see why some companies might prefer the wording of Version 2. Version 1 specifically says: "The intellectual property - i.e. patents possibly present - of (parts of) the standard is made irrevocably available on a royalty-free basis." This would allow alternative implementations from the free software community, which is unable to pay royalties. The current wording, which allows patented, proprietary solutions as part of the "open continuum" would mean that free software could not compete. How convenient.