The machines are complicated, have to be disassembled to clean and people arent really trained how to put them back together. And the company charges an arm and a leg to send out a rep. And he’s busy at another McDonald’s doing a 3 hour job a nightshifter was supposed to do right last night.
My cousin owns 2 McDonalds franchises and your explanation is correct. Machines very complex and have to be cleaned. Workforce isn’t capable of doing the job correctly.
Hopper fed soft serve machines aren’t that complicated. Remote pressurized pumps complicate matters.