There are some gains to being able to physically look at your ship. For example, it might be reassuring that it is
still there. Are you also intending to have autopilot do everything for you, or try and keep a formation of these things going by cameras and transponder readings alone? Sometimes it's useful to be able to look at what you want to be seeing.
As for being a big "hit me" sign... Personally I'd hit the massive weapon batteries first; after all, they're the ones shooting at you. I do not believe for one moment that the guns will fall silent the moment the comms to the bridge get cut for whatever reason. The gunners would revert to emergency protocol, just as had happened to the defensive guns during the USS Forrestal fire. And while all current ships have an obvious bridge, isn't that just as much of an invitation? What you'll notice is that modern warships will function in combat without their bridge, usually from the redundant command centre, somewhere near the middle of the ship behind several layers of armour, and rated for chemical and biological warfare (probably nuclear too).
So yes, no matter how big you make your ship, you're probably still going to have an obvious bridge somewhere on the damn thing. Much like the current freighters, you're probably not going to be able to see small things directly adjacent to you, but you're still going to be able to see things vaguely in your weight class, especially at a standard safe distance. Your bridge will be visible and exposed, but it will not be critical to the ship's combat functions.
On the other hand, it's your ship and your world, do what you want with it. However if you're asking for opinion, mine is above and I assure you I will be watching any "realism" justification carefully
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