Because it's FUD - pretty much all lies - and needs to be corrected.
I notice you don’t seem to mind that WP7 doesn’t multitask.
Wrong. It does multitask, at least as well as the current iPhone. If you want to lie about it, you'll be called on it (and yes, you've been told this before, about the multitasking inside WP7).
Is it true multitasking, like the older WinMo did? No. It's shared, restricted multitasking like the iPhone. If you want to say the iPhone multitasks, fine - so does WP7. If you want to say that WP7 doesn't multitask, fine - neither does the iPhone.
I concur with your multi-tasking comment in fact I believe earlier in this thread I said it multi-tasked. There is a lot of FUD about the WP7 out there.
Then complain to the poster.
Wrong. It does multitask, at least as well as the current iPhone.
Wrong, and you know it. Just like the earlier iPhone, it only multitasks among its own apps. This is not the multitasking anyone is talking about when comparing to Android and the iPhone. It does NOT allow third-party multitasking like Android does, and does NOT allow limited third-party multitasking like the iPhone does.
See, there you are, already making excuses for it, although it was not acceptable to you when comparing the iPhone to Android.