I know it sounds weird, but things like that always happen with broadly adopted software.

Dolphin 8 is just a new core now. We have framework, engine, core modules. But there's no front-end yet. Even when released it will need at least a year to catch up with Dolphin 7 functionality set.

Dolphin 7, as you see, is close/coming soon, but it is a major upgrade. It needs testing, debugging, tuning, etc. Meanwhile we have thousands of DOlphin sites running on 6.x.

6.1.5 is a "patch" see more if you will, but a very important and much requested "patch". Some active sites will need a few months to move to Dolphin 7 (mods rewrite, design re-integration, DB transfer, etc). but now they have a pack of severe "issues" that need to be addressed ASAP.

Hence, I believe everything is totally fine with our "focus". What you see now is a mix of forward-thinking and customer care.