Wait, did I just read that correctly? Microsoft is going to make their OS less responsive to the web by disabling JIT for browsers other than IE? IE is horrid, it just makes no sense why they would do this to the detriment of their users. Microsoft... this is why you're a curse word to front end devs.
The no JIT is only for the metro interface and ARM based machines - this is only for tablet like machines and is for the same reason apple do the exact same, the apps are all sandboxed and can't write executable memory regions. Normal x86 machines will behave just as they do now.
