Is it really that unbelievable?

(15:36:38) (Caius) masquerade: “security issues” isn’t clear, its an quick excuse, if it was a proper reason then he should back it up with evidence or a description.

And if one wasn’t bad enough…

I’m still not clear on whether or not the plugin has a security vulnerability, from wp-testers archives

Believe it. Follow the wp-svn mailing list and you know its true. If you search bugtraq for the vulnerability, its the first result. Heck, if you visit skippy’s site, you’ll see that it exists. Just for giggles, I googled it too. Believe it yet? I don’t know about you, but if I was the lead author of software on hundreds of thousands of blogs, I wouldn’t just go around spouting off about a security vulnerability that doesn’t exist.

As a sidenote after discussion, yes, security issues may be a poor justification. I don’t want to be misunderstood, I agree that it might be a silly excuse, a poor excuse, a petty excuse, etc., but I wouldn’t doubt when Matt says that there were security issues. If anything, you should be questioning how worthy that makes the plugin of being removed entirely, like this.