3.4 overusing brick block when generating my city #1480

Compared to version 3.2, version 3.4 definitely overuses brick blocks to create buildings in my hometown. Most of the buildings look like clones—they have brick facades and brick roofs—whereas in 3.2, there was much greater variety in the blocks used. In 3.2, my little hometown was diverse and colorful; in 3.4, it sometimes looks like an ocean of bricks. Is this intentional?