No.
This system is meant for effective practice.
If you can get a 99% FC on a song it means that the song is not suited to be good practice even if there may be some hard parts for you. Being able to fc a song with 99% acc in 9 of 10 plays is NOT the desired result of this method
The maps that will stay in the lower brackets are maps that you have serious problems with and they will often contain a lot of elements you're very inconsistent on. Essentially this method is a filter method for good practice maps - maps that present you your problem(s) in the most simple context.
Maps you can't even hope to get good acc on without actually solving the problem(s).
Look at this map for example:
https://osu.ppy.sh/b/366241My acc always drops at the concluding streams by like 2% so i usually get below 97% acc on it.
The streams are obviously my problem here in terms of acc but the map is not good to practice them cause there's literally only one problematic part at the very end(I got a 96% S on it with one sliderbreak, so I could FC it with some effort).
I got some maps in my lower brackets though that are more suited to practice streaming so if I want the brackets to represent my problem density there's no sense to put the map i linked into a lower bracket again cause the amount of problems won't change from me getting 2% acc less out of randomness.