Part of the problem with things like Fusion is that it is pretty much proprietary Yaesu and there are parts of the system that they don't allow 3rd party access to.
If the M17 project succeeds then maybe one day amateurs can use a completely free and open standard and we can move away from the proprietary implementations that limit us to doing what someone else has designed.
It takes effort though, and it takes time to grow such a system to the point that the radio manufacturers want to include it in their products.