I believe this came up a few weeks back. Here's why I light the stove first even if it indicates or responds to an incorrect condition. 

When I turn off the fridge i do so first at the tank so that it burns off gas in the line. Seems safer to me.  Then I turn off the dial. When i try to light the stove for example after doing this I get 2-3 seconds of air before it lights. I assume I would get the same air in the fridge gas line causing difficulties in lighting. I find if I light the stove first it gets any air out of the lines and the fridge starts more easily. 

Just my 2.5 cents. 
Jeff 
85 Westfalia GL with generally working fridge

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