According to the video, 2/3rds of that range is for loiter and divert capability. It's illegal to fly a route without the capability to loiter and divert. You need 30-60 minutes of loiter + 100 miles of divert. This plane cannot be used on any route longer than about ~200 miles. Which can be driven in 2 hours, although obviously the OP was referring to the 120 mile electric range.