I think maybe yes, you've been around mostly good engineers.
It's not a problem that's exclusive to coding, you find people talking loudly about absolutes in most fields. People like definitive answers. Makes us feel secure.
Which makes absolutes easy to sell, and especially popular with people who feel out of their depth. It also makes them popular in academics.
You also find flexible, creative thinkers in the same fields. They're just not as loud, or as numerous, in my experience.