By saying "my linux box just got hacked, and now I'm going to get sued", he also pretty much said:
"I downloaded something from an untrusted source, intentionally set it to executable, and then intentionally executed it. I gave the hacker your money. Now I am going to get sued because I am an idiot."
There have been Linux security vulnerabilities before, you know. As in bona-fide, open the wrong webpage and get instantly hacked vulnerabilities. In fact, most of the security issues in programs like Flash and Firefox apply just as much on Linux as on Windows these days, it's just that no-one really bothers to target Linux desktops. Bitcoin seems like a very worthwhile reason for some hacker to change that.