As someone from a country where running orders are still to disinfect often-touched surfaces (switches, door handles, office desks, etc.) I was surprised by this.
I went to check what CDC from US recommends. It turns out it's pretty much the same:
> Clean high touch surfaces daily. This includes tables, doorknobs, light switches, countertops, handles, desks, phones, keyboards, toilets, faucets, and sinks.
(from https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-si...)
So maybe wiping down the belt between every customer is a bit excessive, but it seems my sources don't agree with the "you don't get COVID from that" part.