I agree with 90% of that, at least about how applicable to broader market it will be. But look at Arch and Slackware. Tech like RISC-V can exist SOLELY from communities and still end up becoming worth a lot of money. Like RedHat lots of money. Also about Pi: https://www.cam.ac.uk/stories/raspberrypi (that is a MASSIVE market to any startup founder) Saying that 1 billion usd is failure in consumer market is just not true.

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Also asking how many laptops with Pi is not the right question, people wanted it as its own little SOC motherboard not in a laptop. Putting the single board in a laptop kinda defeats the whole tinkering purpose and how would they expose GPIO pins? A laptop for the pi is just a case with a keyboard and built-in monitor, most people in this niche would rather just keep the easier physical access and use external monitor + SSH.