While you are right, my view is simply that any developer incapable of understanding the difference between client and server has a snowball's chance in hell of

While you are right, my view is simply that any developer incapable of understanding the difference between client and server has a snowball's chance in hell of actually creating something secure. Meteor may abstract some of the drudgery of client-server communication, but you still have to know the difference - both for security and implementation.