Plain old faceplant failure.
If you want to troll, at least be entertaining.
The thing that makes this so utterly stupid is, "all resources" of what? That embedded system in the pregnancy tester that troll will never have a use for, or the huge distributed clusters they're not smart enough to know what to do with?
And I guess it also thinks operating systems should not use available resources?
Anyway, the story telling is good. History always is, but this is also useful for pointing out how contingent things like this are - if Theo hadn't mirrored early versions, or if Linus got possessive at the wrong time, something else may have ended up in the "Linux" niche.
Small actions can have major downstream effects, but you can't know in advance which ones matter. There are several different lessons in there, depending on what you want to focus on.