It’s very difficult to know what will be valued in the future.
In NYC, the World Trade Center was often thought of as an architectural abomination. Two boxes stood on end without soul or character. Once they were gone however (notwithstanding how they were taken down) people had to admit they did have a unique character and were representative of a time and a place.
Again in NYC, the beautiful old Penn Station was destroyed to be replaced soulless office towers and a “modern” sports arena. Train travelers were reduced to a rats nest of a filthy underground station. When the developers came for Grand Central Station the public responded with a hearty “NO!” and it was able to be saved. And yet Penn Station does about double the ridership of Grand Central (and according to Wikipedia is the busiest transport hub in the Western Hemisphere.)
I guess my point is, we’re all trying to do our best — including city planners past and present — and as times change we should endeavor to continue, but cut some slack to the planners of the past and hope those of the future will do likewise with us.