Not to diminish the accomplishments shown there, but that plane seats maybe a dozen people? Most airliners can seat 100+, and their range is sometimes an order of magnitude higher than that. The problem is that batteries are significantly less energy dense than jet fuel, both by weight and by volume. To reach capacities and ranges of modern airliners you'd need batteries that are much more dense, compact, and light, and afaik there's nothing even close to the improvements needed right now.