Of course the "Improving situational awareness" argument to justify all this assumes that every pilot flying into our respective airports is fully familiar with the airport layout re. runways, taxiways, holding points etc.
Obviously many of them are not, so you will still have the disconcerting situation (for the aircrew that is) of an aircraft being instructed to line up on a runway that they have already received a landing/take off clearance for, as they patently won't have time to check on a chart exactly where the other a/c is when on short final/during the take-off run leading I would think to a slight feeling of panic.
So even though it seems belt and braces it's not foolproof!