Uber-style ratings are awful for restaurants. Uber Taxi is basically: you did your job, you get a 5. Any aggregate rating below 4.5 could just be a 0.

Uber Eats... you did your job, I got the right order, and it was delivered. Well that's just expected, you won't get any brownie points for that. What I review is the food. I have used Uber Eats probably a thousand times. I have never given anyone a 5 for their food. I want to use the whole scale. And I'm fine with occasionally eating something that I might score a 3 (using my own scale) if I'm in a hurry. But on Uber Eats (and all the other apps), absolute slop has a 4.7 rating in their app. I don't understand other people. They must be giving a 5 for something that is merely "fine" (I'm being generous here)? I'm sure there is rating manipulation going on, but it can't be that rampant. Apart from times when the order was wrong or something was missing, I stopped rating Uber Eats orders a long time ago, because that rating scale does not map well to mine.

Also, several times I have received a note in the bag saying "I hope the food is to your satisfaction and that you will give us 5 stars!". Big mistake.

The experience of being taken on wheels from A to B is very easy to make the same. Especially when Uber requires modern cars (reliable) and drivers are chasing 5 star ratings. Everyone is friendly, offers a mint, talks if you want or stays silent if you want, drives safely and finds the destination. It is just a tighter set of requirements and judgements than with food which is way more subjective.

Taxis are (roughly) fungible. Restaurants arent. I don't care exactly which taxi driver I'm getting. I definitely care what food I'm getting.

Repeat business with a driver is really hard. And at least the uber app has strong remediation and selection of drivers.

Restaurants do allow for repeat business, and apps have less remediation and less selection. Less selection is because a bad restaurant causes much less PR damage than a bad driver.