According to my contact at Toyota the Tesla UMC is not UL listed. FWIW, neither is the Volt EVSE.
There is no 240v option for the Rav4 other than the home Leviton system. I would think Ingeneer's upgrade would be mandatory.
Toyota's argument was that there was a well enough established charging network within the specified areas where the Rav will be sold that most people would never need to charge other than at home or at a public charging station. If grandma's house is at the edge of your range and she doesn't have a charger at her house you better plan to spend at least 2 days there to charge up for the drive home!