Don't get me wrong: I don't disagree with the sentiment, I'm just saying I doubt I'd even put in the effort of redirecting them to a separate page of any kind if I'd decided that my landing pages should be very javascript heavy.

My prejudiced view is that it's such a small part of the population it's not worth caring about, though I'd be glad to be proven wrong.

If doing pages that require javascript to even run in the first place is a good idea, I think is a different discussion.