Henry -- the problem with that kind of blanket statement is that there are existing neighborhoods which become victims of a "one size fits all" mentality
For example -- Build all you want between Broadway and Andrew on the [W] side of Dorchester Ave. East of Dorchester Ave there are existing residential developments which need to be treated with care. The same goes for the "Polish Triangle" between Boston St. and Dorchester Ave.
The planners are letting massive buildings encroach on a stable residential neighborhood.
The best approach is to go somewhat slow starting at the Broadway end redeveloping the old industrial / warehouse district parcel by parcel over the next decade.
East of Dot Ave and west of Old Colony is not a neighborhood. It's no man's land.
The polish triangle doesn't really exist anymore, per a Globe article in 2013 (top response when googled). And per an acquaintance who has live in the Mary Ellen McCormick projects for 25 years.
Slow down? The Macallen Building (Dot and W. 4th) is 15 years old!