Why do this to healthy Oaks?

 Judging from the cuts, I imagine a "tree worker" or the owners professional landscapers told the owner the trees might fall if they dont remove a few branches.

Not their trees

 Pruning trees that are not theirs to increase their view.

Pink Robinia ignored by homeowner during million dollar home and landscape remodel.

House remodel $$$$ over a 2 year period, and they leave this sad tree in the middle of a new landscape.