I think you offer solid advice but I don't think the original author was saying "I want to be lazy". They were saying "I don't have that much time", which is totally different.

There are solutions popping up that make freelancing much easier. UpWork is hit or miss, but an option. I co-founded https://turtle.ai/ -- we have a bunch of PhD students, developers with full time jobs. There are even a few people doing just a few hours per month.

We need to unlock ourselves from the mentality that "40 hours per week, butt in seat" is the only way to do work. The future of work is remote, flexible, results-driven.