Mostly agreed. My theory is the practice of blurring arose out of cock shame. The official history doesn't make much sense, and it's a retarded solution to the problem, because the viewer can obviously get a sense of the size regardless. But if you're familiar with the bizarre cultural procedures prevalent in Japan, it makes way more sense than any other explanation. The last part is a bit unfair. I've seen some decent looking guys in JAV, but they're definitely in the minority.
At the same time JAV was and still is primarily produced with a Japanese audience in mind.
Anyway, all of this is a broader problem with AM porn. Not just JAV, and not just professional studio stuff either. I get so annoyed when I search through related subreddits. Just so many ugly/gross/fat/old people/couples with zero self awareness of the damage they're doing. A lot of these pro-am guys too, even the big name ones shoot a lot of content with straight up BUSTED women. Way too much content in the bottom quality-primitivity quadrants:
If optics are of any concern at all, it would be far better not to shoot at all than to shoot this kind of content. But there is a fundamental tension between narrow self interest and optics. And the same tension exists with viewership. A lot of guys want to see a fat/ugly/old/small dick guy fuck a hot girl or just any girl at all, so you get the result that we have. I often wish there was a separate term from 'AMXF' because it's so flooded with bad content. There's already a strong pattern with the best looking couples deliberately avoiding using the term. Presumably they've noticed the same thing and don't want to be associated with it.
These can be difficult discussions but they need to be had. That said, do not despair! There is more quality amateur AMXF content than ever in history, and it's growing.
Also, WM in JAV actually peaked a long time ago, and the studio system as a whole is dying.