When you've been deep into R&D and then translating that into a shipping product, it's very easy to not realize that you've been building a product which simply

When you've been deep into R&D and then translating that into a shipping product, it's very easy to not realize that you've been building a product which simply nobody wants or just isn't right. Not saying that's necessarily the case here, but that's why you often need external pragmatic perspective, like from the WSJ.