This perspective is astonishingly historically ignorant, and ignores how "Open Source Software" was a deliberate political movement to simultaneously neuter the non-company-friendly goals of FOSS while simultaneously providing a competing (and politically distracting) movement that deliberately courted companies.
The Free Software movement was successful enough that by 1997 it was garnering a lot of international community support and manpower. Eric S. Raymond published CatB in response to these successes, partly with a goal of "celebrating its successes" — sendmail, gcc, perl, and Linux were all popular projects with a huge number of collaborators by this point — and partly with a goal of reframing the Free Software movement such that it effectively neuters the political basis (i.e. the four freedoms, etc.) in a company-friendly way. It's very easy to note when reading the book, how it consistently celebrates the successes of Free Software in a company friendly way, deliberately to make it appealing to companies. Often being very explicit about its goals, e.g. "Don't give your workers good bonuses, because research shows that the better a ''hacker'' the less they care about money!".
A year later, internal memos from Microsoft leaked that showed that management were indeed scared shitless about Linux, a movement that they could neither completely Embrace, Extend, and Extinguish, nor practice Fear, Uncertainty, and Doubt on, because the community that built it were too strong, and too dedicated. Management foresaw that it was only a matter until Linux was a very strong competitor — even if that's taken 20 years, they were decently accurate in their fears, and, to be honest, part of why it's taken 30 years for Linux to catch up are deliberate actions by Microsoft wrt. introducing and adopting technologies that would stymie the Free Software movement from being able to adapt.