I don't love delivery fees and practically never have food delivered, but I would not want to see the customer-facing fees capped. They are explicit fees, and people can choose to pay them or not to have food delivered.
The thing that is being capped here is more opaque — it's the fee the delivery service charges the restaurant. This fee results in the restaurant raising the price of food (which in turn increases this fee slightly).
This price adjustment is not transparent to the customer, so I'm more open to having it be regulated. I would prefer that instead of capping the fee, that it be made transparent.
That way the information is out in the open and everyone can make their decisions with a full understanding of whom is being charged what.
Also, this rule has not been finalized yet — there's apparently another vote remaining.