I get it, there is a long history of such robots failing economically.
However, automating food assembly could free a huge number of people from menial restaurant work.
Perhaps we would see an explosion of food culture and personalization that simply doesn't exist when you have several fast food chains operating tens of thousands of stores worldwide and the cost of opening up a unique restaurant is greater than many people's lifetime earnings.
I hope this problem is solved one day in my lifetime, and that we all benefit from lower food assembly costs and increased dietary options.