I don't see why it's such a big deal. Ya I mean it's kind of a dumb thing to cause a browser to crash, but I am sure any browser has a dumb thing here or there that will cause a crash.
I'd agree. On a side note, took me about ten seconds of googling to find HTML/Javascript that reliably crashes firefox (but does not crash IE8). I expect Chrome would have similar cases where there could be something that causes crashes (at least, there are bug reports asserting this).
(FYI here's some HTML/JS for the Firefox bug... Resizing the browser caused the issue to manifest in Win7 with FF 13.0.1:)
Seems like we're just trying to pick on IE here.