[account42]

Possibly, but that would be pretty damning. A license isn't something you should YOLO. If he is that laissez-faire about licensing the source code then what other important aspects of the project has he not given sufficient thought.

[latexr]

Misunderstanding or failing to predict the legal ramifications of choosing an extremely popular license is in no way an indicator of programming care or ability. They’re different sets of skills.

[sarlalian]

Also, something starts off as a nothingburger side project, so you make some decisions based on that. Then it develops a bit, and turns into something you care about and are able to turn into a business. What people want and expect changes over time, and a license on a codebase that is basically developed by one person, isn't a marriage.