FWIW, every connection will have some slight resistance to it. That normally isn't a big deal except when you start to draw heavy current through it. You're just asking for big problems if you stack multiple adapters in series. This is one reason why none of the EVSE manufacturers recommend the use of an extension cord...it causes problems. An example...Ford just recalled nearly all of the EVSE's it supplied with their cars and are replacing them with one that has a thermistor in it to detect overheating from loose/corroded connections and prevent potential fires. Search the forum for people that have had problems with their plug-in EVSE's and narrowly escaped a fire.
Now, could you tear apart that first adapter and substitute the plug in use in your area? Yes, and it would eliminate two connections, but, in general, adapters are problematic with high current devices.
