Yah, lot of variables, I'd say look at a specific example. It may very well be (for balance reasons) that there are two injectors where one will be on and the other deactivated. Or just hook them all up with diodes and when the others stop squirting the total injector time will reflect that. I don't think you need the ecu to to "tell you", but replace the diodes with LEDs if you want to see what is going on with the injectors anyway
