So why did SM have to kill those trees?

The trees on Luneta Hill were cut to pave the way for the construction of a "sky garden." (But why destroy an existing forest to put up an artificial one?)

The trees on Luneta Hill were cut to pave the way for the construction of a parking facility to help ease traffic at the Central Business District. (But wouldn't attracting hundreds more cars to one area actually worsen the congestion?)

The trees on Luneta Hill were cut to pave the way for the construction of a "sky garden" and parking facility that would solve the soil erosion problem in the area. (But wouldn't a retaining wall the construction of which would not require removing the trees achieve that?)

The trees on Luneta Hill were cut to pave the way for the construction of a "sky garden" and parking facility to help absorb the impact of climate change. (But Baguio receives excessive amounts of rainfall and wouldn't removing hundreds of trees and concreting that much earth space reduce the water absorption capability of the area and what happens to the lower lying areas, particularly Harrison Road which has been having minor flooding issues lately, where all that extra water run-off go?)

The trees on Luneta Hill were cut to pave the way for the construction of a "sky garden" and parking facility because we want to earn more money even at the expense of the welfare of the community...

ahh, ok.