As mayors of the town we can abandon our town for decades, chop down every tree in sight, hit each and every one of our villagers with hammers and nets, and let our towns become overrun with weeds, but we can't choose where our villagers move in. :/
I wouldn't mind a mechanic for a new move-in where you load up the game and Isabelle tells you "Oh, that's right! Someone wants to move into (your town) today! They said they want to meet with the mayor straight away!" and when you meet them, they can tell you they're having trouble choosing a house placement, and you can choose whether or not to help them. That way the people who don't mind random plotting can still have the option for their villager to plot randomly.