I thought that. Plus the commenter that tries to explain that Microsoft built up a good deal of "trust debt" over the IE 6-8 period for those who had to code through it, gets the same repeated in the comments.
It's all very well that it technically might work, but we're dealing with humans here, humans that have been annoyed for a long time...
Not to mention the joy of "can't execute code from a freed script" in IE9 (code that works fine in every other browser, even IE6, magically broke in IE9).
It's all very well that it technically might work, but we're dealing with humans here, humans that have been annoyed for a long time...