Cute means not menacing.
In theory it would always be a good thing to not be considered menacing. But if if you are so cute "no one" would ever consider you menacing, if you are so lacking in backbone that you become as cute as a puppy, then that's a bad thing.
Women don't want to take care of their men when it comes to certain things. They want a dog who can protect them, not a cute puppy that is always endearing to the eye but is completely harmless to anyone.