They're probably referring to the Insignia ovens (and cooktops) that Grand Design moved to a year or two ago. There have been issues with keeping the oven lit. It's due to low gas flow and Insignia has come up with a fix for it. Our 2020 GD Solitude came with a Furrion oven and cooktop. The cooktop is great; the oven won't stay within 75 degrees of where it's set. We've not used the ovens in either of our 5th wheels, anyway - we use the convection oven that's part of the microwave and use the lower oven for storing pots and pans.
Rob