Linus was responding to totally unsubstantiated request based on wrong information.

The guy behind /dev/random is Ted Ts'o who has worked as Kerberos V5 project leader is part of security area directorate in IETF and chair of IPSec working group.

As far as I see /dev/random uses the best practices and don't innovate unnecessarily. If somebody is willing to spend time actually vetting the implementation, that would be great.