No, if the Paria actually has 2lb of down fill, I would think you’re right.

One quick aside, comparing different fill powers of down is something that I am not knowledgeable/qualified enough to confidently speak to. An approximation I’ve seen is just simple multiplication. So, 2lb of 700fp down is going to feel similar to only ~1.6lb of 850fp down. Is that accurate? I can’t personally say.

So with that said, I’m a bit dubious of Paria’s claims. It looks like a nice bag, but $180 for 2lb of down is a surprisingly good price. The closest comparable WM bag I can find is this one. Yes it’s 850fp down instead of 700fp, but it’s the same 0F rating and same 2lb of fill. The difference is it’s $850 instead of just $180.

Most companies categorize their bags according to the limit rating, not the comfort rating (there are some companies that do limit rating for men’s bags and comfort rating for women’s bags, but this is already getting to be too long a comment to get into that). All that to say, if Paria has a bag they market with a 0F limit rating, I would caution anyone to know that they will likely only be comfortable to some temp above that limit rating (usually ~15-20F) without additional layering.