The only optimisation this one has (that the article tells us about) is that passengers choose their floor, but not the elevator to get there.
No, because as soon as we found out about this we'd all be going around trying to train strange behaviour into elevators.
Then they'd all end up sulking in the basement...
Not at all. Here's a similar idea, a thermostat with two inputs: too hot and too cold, plus some machine learning tuned for circadian rhythms: https://news.ycombinator.com/item?id=3153227