Probably doesn’t make sense for standard residential buildings but for these tall buildings that are highly engineered, does it really increase the costs by that much? Trees offer a large increase in benefits over other types of vegetation due to the shade and many times greater biomass.
That said, simpler green roofs should also be more widely used in cases where trees are too heavy or expensive. And vines and green walls too. I want to see the concrete jungle become an actual jungle!