Any inverter falls into that category. Yes, it sucks power big time
and to make it worse most have a display that shows you just how many amps its' using.
So I think it's a comfort level thing. I don't like seeing big amps going out of the batteries but I've had inverters for 30 years and I know it's only a short term situation. A few minutes of inverter use shouldn't be a problem if the batteries are in good shape. And the trade off, a nice bowl of hot soup on a cold day and no pot to wash.