While I probably wouldn't do my job, I do believe I would do something similar for an open source project.
(It probably doesn’t help that preferences are quite variable. I’m generally pretty comfortable doing tight-deadline stuff at least some of the time, especially if it’s clear why someone needs the thing fast. On the other hand, I’m not a big fan of some of the current process/“practices” stuff, and can see that people who enjoy a fair amount of structure could dislike an environment I found near-ideal)