Well, yes, and no. The shorter the barrel, the better it will spread, but the truth is in most homes, an 18" shotgun barrel shooting 00 Buck or even bird shot down the hallway of an average home is only going to spread a few inches. You still have to be as precise with a shotgun as you would a rifle. I think most people have a better "point and shoot" ability with a long gun than a handgun, however, but then again there's always the argument as to which one you're going to be able to pull and shoot the fastest. I could see a debate going back and forth forever on this topic.
I chose the best of both worlds (in my own opinion, of course): Taurus Judge .410/45 revolver w/ a 2.5" rifled barrel. It's about as close to a point-n-shoot shotgun that I could find. The rifling on the barrel helps to spread the shot (about a 5' pattern from my bedroom to the end of the hallway where the only entry to my house would be) and I have it loaded with defensive .410 ammo in the first 2 chambers for quick shots followed by hollow point 45 Long Colt rounds just in case more rounds are needed. I do have a semi-auto 9mm handgun and a traditional HD shotgun w/ an extended tube for more capacity within a few feet as well, but the Judge would be the first one that I grab.
As for as lights and lasers, don't need them. My security system will turn on every light in my house if tripped, and I have a battery backup in case of power loss, and I still have a tactical flashlight close to my bed just in case. I wouldn't have any problems seeing what I'm shooting.
JINX!!!