You are misunderstanding their point. They are not saying that anybody is denying the election results.

A "bare fact", as they put it, is a statement exclusively of fact. Adding the qualifier to the fact makes it no longer a "bare fact". To use their example, "Snoop won the election," is a bare fact and, "Snoop won the election and that's bad," is not a bare fact.

What they are saying is that some people cannot accept "bare fact" statements as such; they tend to add or expect some qualifier to the effect of "that's good" or "that's bad".