True, it doesn't, but I've seen others post about why they think it is bad (e.g. the intention is to help the returner but in practise it turns out to help the server more). Why do you think this rule is good?
It helps the server more with overall 1 point per match, which is absolutely nothing.
If there are on average 4-5 lets per match, 2 are neutral, 2 help the server, one helps the returner.
So it makes no sense at all to have an unreliable machinery, which unfine tuning either beeps for unexisting lets, or fails to beep at obvious ones.
This is a worse problem overall as it is unfair, it's slowing down the play, it's creating unnecessary discussions and even fights during play, so why on earth having such a stupid rule?
Traditions? That's the word that's been holding the World back for centuries. Traditions are overrated.
Here an illustration - https://www.youtube.com/watch?v=3af3MQlfD28
Why do we need that? It's BS