I’m not so sure.
Given how unstable FreeBSD 5 (intro of new SMP) was, until it finally stabilized multiple years later at v8.0 - I’m not sure others would have that same sentiment.
And seeing how DragonflyBSD performance is standing up to FreeBSD (and best’ing it times) even though they have a radically smaller developer community (and no corporate support) - it does challenge the topic of who was right.
I do think objectively, people would state that DragonflyBSD chose a clean/simpler architecture that’s easier to understand