No, the idea behind TBC was to build a tunnel between Elon Musk's house (at the time) and the SpaceX factory for his private use, to shorten his commute from going around a mountain to going through it. That's why the "proof of concept" is where it is.

Also, they did not do any real innovation, as you seem to be claiming. Combining those steps is 50-year-old technology, at least, and has been done at scale (ie not on tiny tunnels) many times.