Proposed changes to Sona in 6.14

So i had a couple thoughts and questions i wanted to get out there. First off i know the patch isn't out and things could still change, but figure i might as well post these now instead of waiting a week and still being unsure.

First off i'm going to say that i'm not super happy with the lost of the bonus .5% heal per 1% missing health. It does feel like a bit of a potshot to give her very slightly better base numbers a .05 boost to her ratio and say that it makes up for the lose of the bonus healing on more damaged allies. I will admit, that i might be over reacting, the new bonus healing/shield items do go a long way.

The change to her E aura is also a littler weird, in that it seems to require allies to attack to get their bonus movement speed, am unsure if it will trigger off any basic attack or only attacks against enemy champions, either way it also feels like a little bit of a nerf to her team based power (can no longer speed up the entire team to quickly move around the map).

My big question though, is given the change to her ultimate's passive bonus, are we now looking at Sona being able to build full AP/Support without needing to build CDR? Or are we looking at bonus cooldown reduction from the passive on top of what ever CDR you build from items? Either one opens up worlds of possibilities, i'm just curious which road we can expect to go down.