What is ridiculous? The fact that in "training" you are giving the other team an inordinate amount of points when you don't get the stop right? What, that when you are incapped you have to be rescued? What that you slow the team down because you are baiting the other team.
I use the external program while playing, though I have plenty of power and have not noticed any degradation of my performance, though I have a heavy duty i7 and video card so they are capable of recording.