So go do it yourself. You're asking people to do stuff for you and fulfill your wishes without any compensation. Why would they? You have a problem, you fix it. Or start a crowdsourcing project to hire some developers to work on the problems that you see.
Also, just so you know, there are GNU/Linux tablets. There are already tablets that dual-boot android and GNU/Linux. In the future there will be even more. Tizen is GNU/Linux, it will have tablets, and Sailfish will "maybe" run on tablets (no reason why it couldn't, just depends on Jolla, if they want to release one).