No... more of an act of encouragement. That growing weed isn't hard. That anyone can do it, with basic shit everyone has around the house. Before I started I thought u needed all that expensive shit( hps, mh bulbs, reflectors, exhaust, etc. ) so I never tried it when I was younger even tho I always wanted. Granted you'll end up with better outcome with hid lighting but for your everyday stoner, who just wants some free nug, it's not necessary.
I guess u could say it was stubborness cuz someone told me I wouldn't get more then an oz with those dinky little lights, n I said it's more about how u train the plant, so I had to show them what was up. That it depends almost as much as stress training as it does lighting on how much you will end up with. At least that's my opinion. Your entitled to your own tho.