The minimum technology required to solve a problem isn't always the same technology that a team has experience with, has existing projects/code in, can readily hire for, etc. Nor is it necessarily the same technology capable of solving future problems. Besides, some people just like the mental model of some tools and enjoy working in that way. The idea that we have to pick the minimum tooling every single time usually seems like flawed thinking based on that out-of-context Tim Berners-Lee quote.