Have you find any cases where hills are actually faster than an equal length flat route? I've been thinking it's at least theoretically possible as you could climb at the speed limit of the pedal assist then descend faster under gravity
I do it in practice! With light hills I climb at 25kph (Steeper hills, I can’t hit the limit), and go down at 30-35. Faster than the same length flat road along the lake.
In San Francisco it can be quite brutal to go up hills even when its the shortest path to your destination. Oftentimes there are designed slow inclines for bike routes but an e-bike can change that pretty easily