I think Apple did the right thing. The fact that a script gets executed automatically had to be fixed immediately. They just have to go further.
Because of the first worm, too many people were suddenly starting to think about and investigate the possibility of writing a Mac OS X worm. Publishing the exploit as fast as possible is the best for all Apple users. I think at the end of the week, every Apple user will know about it.
While the Finder allows the user to find out that the file is an executable ? with a right-click, for example ? many users will not do that. They just look at the icon, which can be the same typically used for innocent files.
In my opinion, it is better to release several security updates. Apple fixed the serious part very quick and that's good.
