That quote is consistent with what I wrote. If a quarrel (or a physical fight) breaks out over a discussion about a fact then it’s likely that the parties involved with the quarrel aren’t accepting the fact as “bare” (per the meaning I take from OP’s comment). That is to say, they implicitly or explicitly include the “that’s good” or “that’s bad” qualifier alongside the fact rather than accepting it as a “bare” statement of fact.