Hmm conspiracy theory... Nope, Microsoft is a for-profit company with a huge platform that might be slipping into irrelevance.
They're playing the cards they have at any given time - when it means supporting standards, they do that. And when they're totally dominant, they tend to set the standards.
I'm not even suggesting it might be intentional - the IE team and the MS top management don't necessarily have the same long-term goals is all.
Maybe the IE team would even love to go cross platform and compete as a browser and not as a part of a larger platform.
Unfortunately it's a bit more than a theory. In a real, documented sense, it has been Microsoft's modus operandi with regard to internet technology for over 15 years.
They're playing the cards they have at any given time - when it means supporting standards, they do that. And when they're totally dominant, they tend to set the standards.
I'm not even suggesting it might be intentional - the IE team and the MS top management don't necessarily have the same long-term goals is all.
Maybe the IE team would even love to go cross platform and compete as a browser and not as a part of a larger platform.