Interesting article.When I was active in this field we ran into the same problem which I documented below
https://powersaving.co.za/alternative-power/inverter-overload/
The solution we implemented was a bigger inverter.
I also read the generator vs solar and we have both.
If it was just for load shedding then it would be no problem but we have many outages here, between 3 and 80 hours at a time so when that happens we run the generator for 2 hours every 5 hours.
I agree on the bigger inverter but right now it's just a challenge to see if I can get around the spike problem.