It looks like a "just started" group with no money, no resources, and no sponsors trying to see if they can drum up any business. I suspect it's mostly about money.

A 300 mile long cross country course is pretty neat, but in today's world, you need cooperation from the local and state governments, and lots of insurance. Plus you still need lots of money to hedge against the inevitable lawsuits that will ensue.

Now holding a race in an arena, where the robots have to navigate a ever changing course might be more cost effective. Now the audience can watch the proceedings and it is visible to everyone.