The real problem is 90+% (just a guess) of the 'real world' civilian shooting scenarios involve no shots or a small number of shots with a small number of assailants. Read the armed citizen column to get some ideas. Very, very few shooters want to shoot a match with a total round count of a dozen spread over ten stages. I believe Rangemaster and Tom Givens runs something like you propose.
To me, it is more in the realm of personal training, which I can do at my range any time I want, as long as I am not too lazy to set it up. You can also shoot regular competition 'tactically' and I have had a few shooters do that. I am not sure what starting in a 'tactically unsound' position means, since most folks don't get to choose when and where they start the fight. If you don't like the high target and round count, view it as a series of interconnected short scenarios. You may piss most of the regular shooters off if you take an excessive amount of time, but that's the cost of being tactical.
