I know I'm being a cynical ass, but I flat out do not believe that they have no incentive to integrate Pocket. Maybe it's not financial, but it has to be something.
There's a lot of hate around pocket, and it provides a cool, but simple feature. Yet I haven't heard anyone who loves it and actively wants it. The best I've heard is "yeah, it's OK", even online. I don't know why they would push so hard for a product that there's so much hatred for, and nobody rooting for, whey they could just say "Wow, OK. Guess you guys don't want it. We're scrapping it". It's far from a killer feature, so who's it for?