... the cursor line moves to the far right of the screen when going into this mode and so there is no reference point to scroll the storyboard back to.
The cursor line stays put here when switching to storybook mode, but if positioned on a clip later than #8 it is at the far right, since only a limited number of thumbnails can be displayed at once. In that case the horizontal scrollbar will shift the line left, to show where it was originally placed.
Toggling back to time line mode here, the line hasn't moved. Agree, it would be helpful if the storyboard stayed focused on the timeline target point.
Also, the timeline/storybook toggle is just beneath the sequence tab, which is often clicked in error. Perhaps the toggle could be moved down - above the scrollbar?