- Why is Dolphin shipping with the Common Key instead of asking users to provide it?
→ Who knows! This decision was made around 15 years ago. It's easy to say with hindsight "why do you do things differently", but back then this was a fairly new situation. I wouldn't be surprised if soon we get contributors to the project that were born after this decision was made :)
- Why not change that and not ship the Common Key?
→ Maybe the current devs will. Personally, I don't think it's useful or likely to change anything. Anti-circumvention is about providing a technical mean to bypass copy protection. If you think Dolphin violates this, the common key isn't the problem, the whole "decrypting Wii discs" feature is the problem.