Kipor Sinemaster Genarator...

I have a 1kva Kypor sinemaster and been using it for 4 years to do just that
No problems at all

Digital Sinewave Gennies are fine for this application, unless he got it confused with a modified sinewave?

Here is the Kipor official speel:

Kipor Digital Inverter Generators deliver stable pure sine wave 240 V AC output. From the ultra portable 0.9 kVA model to larger models on wheels up to 6 kVA.
All Kipor Digital Inverter Generators feature high efficiency petrol air cooled engines which produce exceptionally low emissions; meeting the mandatory US and European standards. Kipor’s unique smart throttle power management provides optimum fuel economy and all the required power needed to match your appliances power demand.

At the heart of every Kipor Series 2 Portable Generator is its high performance "sine wave" digital inverter technology. Kipor’s "sine wave" technology delivers high quality, high output, stable electricity making them an ideal power source for frequency sensitive appliances such as laptops, TV's, refrigerators and other precision equipment.

Ideal for all power applications - RV, camping, domestic, worksite, emergency or wherever portable power is required.

Maybe he was under the impression he was watching digital tv outside, when hows they say it up there "The Rains A Comin"

We have a 2600, runs everything in the including DTV and microwave without a problem.

Cheers
Racey