A break-open single shot would be a huge pain in the event of a home evasion by multiple thugs, especially if you miss one. Granted: its better than a sharp stick. Why not implore technology that will help you keep your family safe? Its not like you are setting up claymores and lobbing grenades to stop the threat.
My view it this: If I can aide me in keeping me, or my family safe it could save our lives or reduce injuries. I may be able to stop a threat with a level action, but I also may get shot or killed while taking the extra time needed to work the action as opposed to just pulling the trigger.
Is a cap-n-ball SOA revolver deadly? Of course, but I can defend myself much more efficiently with a modern auto-feeder that has a higher capacity and quicker reloads.
I have a laser-site on my EDC, is it needed? No. But I could afford it, its perfectly legal, doesn't make it any harder to conceal, and certainly could help me in a SD situation. Its certainly not going to get in the way or impede me.
Tactical or otherwise,...Is it practical enough to meet a purpose or it just to look cool? Will it actually aide me in the event of "defecation meeting the ventilation"?