As I wait for trading to close, I'll chime in;
I'm skeptical about the Boring Company's long term profitability. Tunnel boring can be a very challenging type of civil work (Not that landing rockets isn't) and firms in this field have historically had some major problems over a long enough horizon. The Boring Company has taken on a few, relatively short tunnels in what I suspect are not that difficult rock/soil conditions. Maybe that is the intended formula, I don't know.
I've been to the head of an operational TBM and work in the Infrastructure business. Tunnels are only taken on by a select few international firms that have the risk tolerance and experience for such things and there's a long list of those who have failed. Just a couple of months ago, a partner company pulled out of a project as they were struggling so much with rock conditions. Even the nature of these machines is unique in that they can't often be re-used and are difficult to transport - I think the LA TBM is parked off to the side?
To me, the low bid for the three person station demonstrates a lack of experience more than disruption at this point. I see very low bidders all the time and it's for one of two reasons; 1. "Buying the job" to secure work, or 2. They screwed something up in the bid. It's normally the latter.
I have complete faith in Elon and the team, but the key to this industry is not about drilling faster, it's having a sixth sense in terms of geotechnical conditions, the ability to cut through bureaucratic red tape as it concerns authorities and utility providers and manage labour/equipment effectively. I'd like to see more holistic information around how the completed projects went, and less about how they are just planning to drill faster. Again, Elon is no stranger to seemingly impossible challenges, I'm just not seeing any disruptive magic in what the Boring Company is currently doing.