Believing that neighborhood units are the largest impediment to effective and efficient planning is to believe the corporate landowners at their word. There's so much astroturfing that happens in these spaces, largely rejecting density and public transportation.
I can name off the top of my head a half-dozen community-oriented projects blown up by the very same groups, and even one instance where a former state ACLU director came in, pretended to be a movement-aligned mediator, and then proceeded to torpedo the drafted neighborhood deal. This same director later went on to be hired by the same private firm for a six-figure job.
The rot is real and rarely gets reported. David Simon was a rare one in his coverage of Baltimore, not all cities have skeptics like him who dig deep.