Yes, you are right.

when Debs get struck by this issue, it won't affect badly just like Windows, since: Debian users initially don't need such protection when They really do their own hardening, so I thought the number of usage is very low. and there are tons of expert users and expert developer all around the world who can help Debian's users to do quick fix this problem. Note: Debian's is one of the very stable GNU/Linux Distro and since it is Open Source, many people easily becoming knowledgeable just learning the architecture and its programming. Many in this case is actually read as rare :)