Quite frankly, Professor Sooshin would be a horrible manager.
College is to prepare you for reality. As a manager, I know how much time is allotted and what is a reasonable expectation of deliverables for that time. 3 things can happen. My associate can make the deliverables on time. No harm no foul. My associate can make the deliverables in less time. I get more profit and the associate advances and they can use the “saved” time for other purposes. My associate needs more time to make the deliverables. I get less profit and the associate is shown the door.
But let’s talk about an academic setting. If any professor is grading on something other than the expectation they outlined, they should be fired. If I assign 20 and you do 25, I will only consider the top 20 you gave. The other 5 are inconsequential and it would be unethical to consider them as I would be perpetrating a fraud. You could argue if you have the 5 throw-aways, your top 20 may be better. But then again, maybe you should just concentrate on making a great 20.