And why is Adobe the problem and not Capture 1 or Raw Developer or any of the 3rd party raw converter manufacturers? Because Adobe provides a free way to access data that should be accessible in the first place?
Adobe is not the problem. You (and others like you) acting as Adobe's "agents" continually shove this in our face. I do not see any other raw converter manufacturers making the significant amount of noise about this.
This forum is not the place to make this case. It has failed, so far, over the years and will probably continue to fail until a cogent, financial case can be made to convince the manufacturers that it is in their best interests to change.
From a user perspective, it is, essentially, a non-issue. When a new camera comes out, we are going to have to wait for testing to be done, whether it is RAW or DNG. No software provider I ever dealt with is going to make a statement of support without such testing. BTW...all DNG and support for all cameras will change Adobe's business case on releases and probably the cost of the upgrades.