The point he was trying to get across is that Apple shares attack surface with other Unix operating system vendors, which -- given his assessment of them as der

The point he was trying to get across is that Apple shares attack surface with other Unix operating system vendors, which -- given his assessment of them as derelict in resolving vulnerabilities -- increases the harm their users are exposed to while Apple is sitting on fixes that other vendors have already written and deployed. No piece of software is synonymous with insecurity -- except, perhaps, Sendmail. ;)