It is probably more accurately described as a “skid” just prior to touchdown, not a “side-slip”.
Agree. That is a good way of describing that late manoeuvre. It takes keen judgement and this is because it requires a few seconds for the applied rudder to swing the nose around to align with runway centreline at the point of touchdown
.A common fault being pilots “Kick” the appropriate rudder pedal at the flare and the wheels hit the runway before the aircraft has time to react. “Kick” is not the appropriate term of course but you get my drift (pun intended..)