I'd refrain from making assumptions until more is known. Another hypothetical possibility is that there is some corner case of the open standard that nobody re

I'd refrain from making assumptions until more is known. Another hypothetical possibility is that there is some corner case of the open standard that nobody realized was ambiguous until Philips changed an implementation detail that broke (non-compliant) third-party devices, and they're now stuck in the rock / hard-place situation of deciding whether to roll back their change and remove whatever functionality or fix just got added or to apply pressure to third parties to be more compliant with the standard. (That's the charitable interpretation that assumes their software quality process is solid enough that they can even know such nuances and subtleties as "What change did we make that broke third-party devices that aren't physically in our testing bullpen?")