Here is a thought - perhaps those EAA Avcon converter boxes should have had something other than a NEMA14-50 on the side? Like maybe a NEMA10-30?
That way some people wouldn't assume they can draw 40 amps through them.
For example, Martin's Roadster adapter apparently sets the pilot signal for 40 amps when you put a NEMA14-50 cable into his box. If you used the NEMA10-30 cable then it would send a 24 amp pilot signal which would be more friendly to the ICS-200.
It's a little late in the life of the product to be making such a change, but the driver could easily modify the delivered product if desired. Roadster owners are not the only buyers of these boxes.
The Roadster driver can set the a lower value (30A or 32A -- I'm not sure which) from the touch panel in the car.
Setting the lower value from the car is pretty easy, and the Roadster remembers last-used settings, using the GPS reading for each charging site used. So, the lower setting needs to be entered only once. If the driver forgets that first time, and it's an ICS-200, the driver will be reminded by the voice from the ICS-200 announcing overcurrent. No breaker tripping, no harm, no foul. We've had lots of Tesla drivers using ICS-200 charging stations, and no problems that I know of.