Maybe for you but when closing a Wendys down for the night you need to begin the teardown process quite a bit before official closing time. You need to wait for the machine to allow the remaining frosty mix to melt, dump the remainder into a metal bucket (to use for tomorrow). Then you have to flush water through the machine to be able to disassemble it, then the machine needs to be loaded with a sanitizing solution (along with all the parts which are placed in the hopper).

Finally you gotta re-do all of this the following morning! Sure its not like taking apart an iPhone but its not a 5 second job either.

The worst part? This damn machine can only produce one flavor of frosty at a time! The mcdonalds machine avoids all of this, produces 3-4 flavors of milkshakes from one unit and handles soft serve ice cream!