In reply to SARS:
I confirm a part of Yugawara, from Tentomushi (=ladybird) Rock Area to New Area, covering Shomen-heki (=Front Wall), seems to be still banned for climbing at 2012.
Source (in Japanese): the JFA news:
http://freeclimb.jp/news/news2008_1.htm and
Izu-Joyama blog:
http://izujoyama.blog10.fc2.com/blog-entry-8.html
The cause of the ban was, reportedly, due to a massive rock fall in the Tentomushi Rock Area in January 2008.
Other areas, including bouldering areas, in Yugawara are open, apparently. Just remember to follow the local code, such as, brushing off the chalk after bouldering sessions.
I agree the first half of the problem (b) SARS mentioned: there is a debilitating safety first culture.
That is annoying and I consider is harmful on balance even for the society itself. But I see climbers' attitude there is somewhat different from the social standard (after all who would want to be a climber if they strictly follow "debilitating safety first culture"?), and in that sense I don't quite agree on the second half of your statement (b).
Allegedly Mt Tanigadake, which encompasses infamous (or superb) Ichinokura-sawa, has seen more death toll than any other mountain in the world... It is presumably because of the combined factor of its harsh weather particularly in winter, proximity to the massively populated area (30 million, Tokyo) and relative ease of access, as well as the exploratory spirit of early mountaineers. I suppose those many fatal accidents did not help overturn the safety-first culture.
Masa