I don't want you to take it personally. I think it's cool of you to be helping people and I see that you contribute a lot to these forums.
Yes, the statement IS 100% factual. However, it is also misleading. When you write stuff like: "you don't have a virus on your Mac" and "there are no viruses for Mac" it'll mislead many people in thinking that Macs cannot be affected by malware at all. Many people won't read the link you provided, they'll jut take your word for it and, consequently, develop an incorrect notion of impenetrable security.
I, personally, understand the premise of your statement. I just don't think the less technically literate folks would understand it correctly, that's all.
While GGJstudios is absolutely 100% correct, I have to agree. I have been in the computer business since the 80's. I understand the difference in malware types . . ie: viruses, Trojan Horse, etc. However someone like my mother does not, nor does my wife. In fact most computer users don't know or care to know what the difference is between a virus or a trojan horse. All they know, or want to know is that they are bad, not desired, and want keep them off of their computers.