Hi Nate,
I might be approaching the workflow incorrectly, but here's an example: Say I want to filter out everything except the Shear keyframes so they can be all deleted from an animation. Currently, when synced, the Shear filter works in the Graph Editor, yet the dopesheet still displays Scale and Translate keys, so I can't do a quick drag select for deletion.
If I disable sync, I can filter all the Shear keys in the dopesheet for easy selection. Once we can select keys in the Graph Editor I could just click drag in there for deletion with the current Sync filter behavior.
Let me know if I'm on another planet with this. And also, big thanks for the amazing release. The Graph Editor is definitely a game changer.