I wouldn't trust what WaPo says about conspiracy theorist fears, but I also don't trust the conspiracy theorists themselves either. Anything that becomes a cultural or socio-economic benefit for the community seems to be co-opted by elites regardless... but how it'll all play out is still a mystery. I do think there is worthy concern when it comes to increasing government control over the people, especially how urban cities are designed and structured, but that doesn't mean their plans are all bad for the community either. There are definitely benefits too.
RE: Considering 15-Minute Cities