Yes-even if there was a bad connection in the plug heating up, unlikey with the SmartPlug- the SmartPlug would disconnect itself-then reconnect once cooled down,  providing you pick up one with the thermostat. 
Many vendors I looked at are selling the xxxNT (no thermo) models. Not sure though, even mfgs site, unless I just missed, doesn't really mention it (thermo) in anything current?
IF I had a detachable shore cord, the SmartPlug with thermo seems might be worth its price. Otherwise converting to hardwired eliminating extra physical connection altogether would be my first thought. Mostly I don't see advantage in T/C for a detachable cord, still got to store cord-that and if it grew legs/got left at home   proprietary  plug something you wont match local HW?