I'm not sure what you're getting at with that. Is there anything in it, other than that she might have been there?
Don't get me wrong, I think it's possible she's more than just a nut or a fabulist who is, at bottom (so to speak), harmless.
But given her rantings, I think she's so unstable, it's not likely Al Qaeda would use her as a real player in a terrorist plot, a la the protagonist in The Little Drummer Girl.
If they're willing to use their wife and baby, why not a useful idiot who believes in their cause (unstable though she may be)?
It is a rather odd coincidence. Pindi is known for having a LOT of AQ connections. Maybe she was there on that day, maybe not. Maybe she just blows a lot of smokescreen, maybe she flew from Dubai to a US bound connection in London with more than 1 lighter by mistake. Who knows?