It wasn't, but there's no reason that we can't use what we buy the way we want to, and feedback from the public often helps manufacturers to improve various aspects of their products. The Curio is great the way it is, but many of us would like to give up just a touch of compactness for some covering.
I wish that I'd had one of these modern pocket wonders back when I was going to the top of a couple local mountains on a daily basis, and never had a binocular. Would have been wonderful, both day and night, to have had a Curio then, but when it's cold enough that even carrying a can of pop in my inner jacket pocket, even if I had a parka on over everything else, they were almost always frozen solid. That happens a lot when -10 below is considered comfortably warm.