Well that's a bummer. I love their stuff...
And so far, using the Rab Pulse as my I-don't-think-ill-actually-use-this jacket, I'm a huge fan of the pertex shield. But as I said, it's nice as an emergency jacket as opposed to something to wear all day every day. I can see why people don't think it's all that durable. Just haven't had the chance to use mine all that much just yet, so I can't say. But as pack filler? Awesome!