There is a YIMBY group in my city and I swear half the Twitter followers have "dev op" or "scrum pro" in their profile.
They also seem to have no interest in any other broader social or economic issue. Zip about poverty, climate change, reproductive rights, trans rights, etc. It's about market housing. Pure and simple.
You hit the nail on the head. Also I would add that YIMBYism in urban (often early stage gentrifying) neighborhoods is not so much tech bros as it is anyone who subscribes to the technocratic liberalism mindset a la Warren that we can plan our way out of the problem, without acknowledging or willing to fight for the deeper issues that present these symptoms. It's not just bad or outdated zoning, motherfuckers.