there is definitely a time frame in which something should be balanced or nerfed. if its been apart of the game and worked like the way it has and people have been utilizing it in that way for long period. then yeah changing it some time later is a bit odd.
but at the same time if something isnt working the way it was intended and is being used in a way it shouldnt be, a balance or change should happen no matter the time frame.
fsoa should have had its release delayed to properly balance it, we did not need a nerf for it 2 years later. The upcoming change next month we are knowing details about on thursday need to take account of both fsoa owners and players who don't own one.