I think there's some misunderstanding in what the advocates of ear tuning are saying. We're not saying that you can't get a good sounding drum, we're saying that the Drum Dial is not accurate enough to ensure the same pitch at each tuning rod. An equal pitch at each tuning rod is what most of us would consider a "tuned drum."I wouldn't argue with you. I can only tell you my good experience. I use DD and my drum sounds great. Your experience does not nullify mine.
A drum can still sound good even if you don't have an equal pitch around the drum. In fact, there are plenty of drummers who intentionally detune one or more lugs because they prefer that sound and feel over a perfectly pitched drum. Because of the complex relationships between batter head, reso head, shell construction, hardware, and pitch at each individual tuning rod, there's a lot of room for personal taste, and nuance in drum tuning.
Still, many prefer accurate and repeatable results- especially if they're paying for them. I just don't think the Drum Dial provides this.
You should be able to record a drum, completely detune and re-tune both heads, record it again, and the before and after sounds should be identical.