Huge use of space. Waste is an opinion.

Yes that is my opinion. Allowing this waste is the opposite of a smart city.

Using 1,5 t of mass to transport on average 100 kg is also a massive waste of energy.

Waste isn't an opinion, but rather a shorthand. Nobody (sane) is optimizing for "amount of cars on the road", but rather the benefits that cars bring (economic benefits due to streamlined transportation, etc). Generally when the term "waste" is used, the implication is:

If option A can provide the benefits that option B can provide with less cost (in this case, space), then the incremental space being used is "wasted". It's a pretty fundamental use of the word.