I don't think this is fair characterization. Errors are less likely to be actual exploits in servers too. When the kernel panic is caused by faulty driver fail

I don't think this is fair characterization. Errors are less likely to be actual exploits in servers too. When the kernel panic is caused by faulty driver failing network hardware, or user land software failures, it can take down multiple servers or all of them at once. Most of the information in servers is private but not sensitive. You don't want anyone have access, but correct functioning and security warnings are more important than maximum information lock down. btw. I don't see reason for not having kernel option to turn warnings into kernel panics.