Load testing can be usefull for other things also. For instance it is all fair and good to say I make .8 ohm
coils and push them ad 4.1 volts which is 21 watts but if I am losing .3v under load it is really only 18 watts. I guess some would say it doesn't matter if you like it you like it. However many of us are curious to know what the actual numbers are. Granted these numbers are made up but the point is the same.