This is a pretty low-performance electric airplane. Fairly efficient, from light sport aircraft standards, but really inefficient compared to where you could go if you want to push aerodynamic efficiency to its limits (ala high performance sailplanes).

The chemistry isn't terribly high-performance and neither is the battery weight fraction that high.

Once clean-sheet, ambitious designs like the Eviation Alice get off the ground, we'll see these kinds of records rapidly ripped up.

Even so, I'm glad someone is doing this. Stunts are a good way to show the current state of the art and focus engineers on obvious places for improvement.