The Boring Company seems like a total nothingburger at this point. The Las Vegas Loop is not particularly impressive and it's taking a long time to expand it. Nothing about this feels revolutionary or even evolutionary. Just novelty. The fact that Teslas can't navigate autonomously even in these controlled, enclosed environments is also quite embarrassing.
It's an outstanding mechanism to derail public transit efforts, that's all. It's not a nothing burger because that would suggest it's a good faith effort that just didn't pan out.
They even derailed (no pun intended) a train link from Building 37 to O'Hare by offering to build a train station in the cavern already dug for a high speed rail terminal that may exist someday in the future. I don't think they ever did anything there but the city was onboard (damn a lot of idioms are train related huh)