No doubt the opinion of a native would be more illuminating, but I'd say it might be a case of an expat whose native accent got influenced by the local accent(s) of wherever they happen to be living. I.e. she sounds like an American whose accent took a coloring from British English, and I see in her article that she has spent some time in England, which might help explain it.
I don't think I would have said English wasn't her native tongue, but 1) it's hard to say since I read your message before listening to the recording, so I knew she was American and that may have influenced my judgment, and 2) I think I would've been mostly confused about her accent.
I don't think I would have said English wasn't her native tongue, but 1) it's hard to say since I read your message before listening to the recording, so I knew she was American and that may have influenced my judgment, and 2) I think I would've been mostly confused about her accent.