You seem to disagree with most of the design choices I have made in creating the ADE. As I have placed all of the code on GitHub you can change it to anything you like. If you want to take the code and make it into some other version with different screens, buttons, knobs, form factors, sd cards and capabilities, then great. That being said, the ADE is in the form it is for a number of reasons. It works. It is simple. It is easy to build by someone with very limited electronics skill. The parts can be sourced from many different places. And contrary to what you have said, it is very reliable.
I like it the way it is, and think it is perfectly suited for it's purpose.