I know about 4 friends that have left their parent company, built a killer product that same company didn't think to build or didn't believe in, only to get acquired by that same company after a few years... some have done it multiple times.

I think this falls in exactly that situation. You see how janky these national companies are doing things, plot out a disruptive course, then disrupt them in a particular region so that you can extrapolate how much that will hurt at national scale and force a buyout that's way beyond the multiple you bought those small operators for.