I think the commenter was trying to point out that it seems that the specific case is somehow fictitious when you use an antithesis between specific and general

I think the commenter was trying to point out that it seems that the specific case is somehow fictitious when you use an antithesis between specific and general and then relate the general case to the "real world". Or put another way: "real world" is an empty adjective in this statement, unless biology is not part of the real world. This is, of course, unintentional, which is why the commentator says "makes it sound" rather than something along the lines of "claims that".