And usually has positive connotations.

Most of the time you use the "one-woman show" idiom is when you are impressed that one person does this by themselves.

There is not, though. No native speaker of English, which the newspaper of record in Houston, Texas, might be forgiven for assuming make up its primary readership, would ever assume that anything described as a "one-man show" must have a woman hidden away doing all of the behind-the-scenes work.

The idiom means "the work of a single person," and that's it. Nothing else.

This is the Chronicle of Higher Education, not the Houston Chronicle

Doh! Thanks, I missed that.