Its not about being bad or worse or better, its being different that grants different rights. MIT is more permissive, which you may like or may not. Some people don't like GPL in example, because you cannot mix it with proprietary license. Or they want to keep a change secret, which is a right I would want to give. I'm not saying its better or worse, but I want to give the people the right to do what they want. This can lead to better or worse outcome.
Its only worse than GPL, if you want to enforce all modifications to be Open Source too.