Real, actual concerns: -Lack of security -Password defaults left on device during setup -Aluminum transformers in inverters don't last more than 4-5 years at rated wattage
As for the subject... I generally don't have a problem with this. Handing over any part of your energy infrastructure to a country with a long and storied history of hacking your companies is generally not smart.
I've purchased two inverters: one is a 3000w "Energizer"-branded one, while the other is a 1200w Victron unit. The Victron's quieter on RF, from what I can tell, is designed in the Netherlands, and is made in India.