A survivalist is someone who takes precautions against bad things that don't normally happen. Anyone who wears a seatbelt while in a car is a survivalist. Anyone who puts a flashlight or candles in a drawer for when the power goes out is a survivalist. Anyone who buys life insurance when they're young is a survivalist. Of course, like most things in life, survivalism has its degrees.
Most people follow one or more of the above definitions.
That is a mild, and socially acceptable form of survivalism.