Agreed, but charging at 19A is actually a safety hazard. You should limit to 16A on a 20A outlet, as WebEV said.
Please explain why it is a safety hazard
It's an outdoor outlet on a GFI
I could stick a paperclip in it and (after getting tingled) the GFI would trip.
I could plug in a shorted cable, and it would trip the breaker
I could accidentally leave my EVSE set to 32A and it would trip the breaker
I agree that it should be 80% of rated for continues use.
But there is a breaker that is designed to trip on over-current and a GFI in case of a ground fault.
I don't see a problem as long as the OL can handle it.
My main concern would be tripping the breaker, then I am SOL, as I have no access to the panel.
But why is it a safety hazard.
The GFI is in place to protect people (standing in a pothole plugging in their defective hedge trimmer), the 20A breaker is there to protect the cable.
If I plug in anything over the 20A breaker rating it will trip the breaker.
There's no way in a commercial setting of a hotel they undersized the cables for a 20A circuit.
I agree there's is a high likelihood I could trip the breaker pulling 19A on a 20A circuit... but a safety hazard?