Correct me if I am wrong - locked out distributor - essentially the same as a crank trigger - no?
The biggest benefit to the crank trigger is you take the intermediate shaft slop between the cam and distributor out of the equation.
No scatter within the locked out distributor since the rotor and shaft are locked together.

As for starting - we always had a start switch and a run switch per the old Direction Connection instructions. Never any issues.

As for locked out distributors being used by people that can't tune - really - ?