Your touch up states "This portion of the piping between the flood rim of the sink and the flood rim of the internal drain pan functions as an effective air break/gap."
First, that is not an "air gap" in any way.
Second, it does not provide an "air break" as pictured.
From the IRC.
- AIR BREAK (DRAINAGE SYSTEM).
An arrangement in which a discharge pipe from a fixture, appliance or device drains indirectly into a receptor below the flood-level rim of the receptor, and above the trap seal.
The "air break" is the distance between where the pipe enters the tailpiece and the trap seal.
However, none of that matters, because (and I am repeating here) ...
This is from the IRC.
- INDIRECT WASTE PIPE. A waste pipe that discharges into the drainage system through an air gap into a trap, fixture or receptor.
"through an air gap"
*And that IS NOT and "air gap".*
Even *if allowed* (and it is not) with an "air gap", that is not an "air gap".