Why not mix both idea’s and turn the flag cruiser into a module that when fit on any ship in eve disables all turrets(including mining)/launcher’s/reps/drones and provides more ehp and resistance’s in exchange. This way it is not narrowed down to super large fleets and would work with frig fleet’s, desi fleets, covert opp’s fleets and so on.
Would be awsum if an fc could fc from a buffed up command desi being able to not get head shot and still able to move his fleet around with mjd and keep up with small ships.
(And the module will be in effect even if it is offlined)
Lets not give every ship a Invuln-mode. Lets let the Assault Ships have there fun and lets find new fun this for other hulls. Neither the CS or the CD are the place to keep adding new things as these ships are already swiss army knives when it comes to there uses. Monitor seems to completely fill the gap that this suggestion does. If you want to fly a command ship as an FC you still can and make it insanely tanky.