Exactly, it's all about the runner's hard work and dedication. I've seen people run in old, worn-out shoes and still crush their PRs. The tech is just a minor factor.
Start with small increments, try 10-15 seconds faster per mile and see how your body adapts. Don't overthink it, just listen to your body.
Cool story, but who hasn't made it to the Olympics, am I right?
Yeah, they suck, but they work, I guess.