The threaded rods have a pitch of 1mm (1mm Z travel per revolution). so if you have a worst case scenario of 10 degrees of torsional flex (both directions) then you have a Z travel of 0.056mm ((1mm/360 degrees)*20 degrees).
this is not much to worry about for most prints at 0.25mm layer thickness (22%). but if you try some 0.10mm layer prints, then it will likely become more of a problem…