IMO the Q range nerf on Raka hardly matters since the further the land point is from Soraka the longer the landing delay.
And at max range it really, really wasn't reliable at all.
I hit that frequently. If you wait for a moment where the enemy's movement is hindered, they are standing next to a wall, or you predict where they are gonna go, it was mighty useful. Plus, the big thing, in my opinion, is that now you cannot really use the ability to chase properly anymore. If the enemy is running away from you in a straight line, and not in autoattack range, hitting them with starfall (or at least a >slowing< starfall) is no longer possible. And
that is very painful. Especially since Soraka's base movement is tied for the very lowest, and you just cannot expect a low-hp-ally to be in the direction you are walking all the time, especially in that situation. If they were to reduce the range of her main offensive ability by 17%, at least they could have, like, increased her movespeed by 5, to help a bit with that positioning that she is much more dependant on now than before.
I don't think they are gonna increase the range anytime soon though. It is not like this is gonna make Soraka unplayable tier. She is just less versatile and less fun.