Everything can be debated and everyone thinks they are the only ones doing it right. Grab whatever pot you like and learn how to work with it. You might be better at growing with plastic and some might be better with fabric. Either way, both will get you some really great cannabis if you learn how to work with them.
I have a friend that started using smartpots, but he still had the grow bags as well. He put one plant in a smartpot and one in the grow bag. The grow bag out performed the smartpot so much that he called and said fuck smartpots! lol Then he told me he waters once a week, I said well theres your problem. He bumped it up to every 3 days on the smartpot and guess what?That plant caught up to the grow bag.
Im not team smartpot because I know they have their limitations. My point is, once again, learn to work with what you got.