No doubt those missions are essential, but its a moot point when you can’t protect your surface ships for long enough to carry them out. If you can’t protect your carriers and other surface ships, power projection and expeditionary warfare capabilities would surely be neutralized by the simple expedient of making it too dangerous to take your surface fleet into the open seas.
So you think you know more than the Admiral Staff of the US Navy? Do you not think they know the short comings of a CVBG? Do you think they rush head long into a situation where hostile subs are present.? Have you studied Naval warfare? Where? How long were you in the US Navy? What rank did you obtain?