I think, EA made earning donuts so hard because they wanted to sell donuts for cash, not they wanted the people to build pretty towns, thats was never their first goal, even if they told otherwise. If you looked throught the towns, in every case you find "XP-farms", my town still has several of them. They knew on that, remember the Dialogs at the end of the game.
So the Intention of the new team is focused on pretty towns, so with many donuts they give the people the chance to do so. Unicorn is the extrem version of this vision. I like the idea, when winter comes i might find time to clean up my town.
So, if it is easy to program such a toogle, mayby they can do, to spending more than 5 minutes on this is quite useless, i would definitiv prefer, if that "friendship dementia" could cured. In the old days i had about a hundred of them, most of them no longer activ for months or years but still offering ideas how to build your town. People keep asking for further zoomout, so i gues the want have an overview on what they are building. To build, you need donuts, so they are easy to get, lets build a town.