There's technically nothing wrong with circular streaming on Normal. The reason Baity and I don't condone it is because once you move up to Hard, the method stops working. She only fires one stream of flowers on Normal, where she shoots two on Hard (toward you and away from you), and six on Lunatic, causing clutter on the screen no matter which way you run. From a purely survival standpoint, go ahead, circular stream it for now. But if you learn it this way now, the Hard and Lunatic versions are virtually no different, and you don't have to relearn anything later.
Don't tell me you never plan on moving up to Hard; setting limits like that is exactly how you hit a plateau, because if you do, you've already determined you're not going to get any better than you already are.
That said, the method to take care of Parsee's last card on Normal will involve circling where Lunatic won't, so don't think that that idea above applies to every card.