If Rich Breen needs this feature, then I withdraw my argument!
And it's true, everyone does work in different ways. Pro Tools is not the only app that has hundreds or thousands of keyframe parameter changes over time. It would be interesting to see how this problem is addressed in Premiere, After Effects, Unity and Maya. Maybe there's something clever in that world that could be brought here. Some plug-ins in Pro Tools would fan out into the Edit window over a vast graphic space. That might be why Avid hasn't implemented this.