You maybe right but it is a no build right now. You should NOT torque the left crank arm to spec if it binds the spindle. There is rarely such a thing as no adjustability aka a line to line build as you suggest. It is possible the bearings aren't properly bedded and what is causing the poor tight spacing with the tolerances of the parts. There should be some adjustability in the design aka wave washer. Next step the crank has to come off to see the parts.