Are you saying that they are doing this or that they should? I don’t see your point other than a ‘could be,might be, not sure’ situation. Either way its useless to think it that way unless you’re bothered by the 1/100 chance possiblity that they are because you find PC FT players hard to beat.
If they are playing on a PC, chances are likely they want the full experience. Meaning they would leave it at the moderate but nice video setting.
But you do realize they are using keyboard and mouse too?