Sure David, telling someone there are no leprechauns in his garden isn't technically 'doing' science, just like telling someone that building a skyscraper out of toothpicks and hot glue is a bad idea technically isn't engineering.
But would you ever ask someone for a technical report on skyscraper construction that mentions toothpicks and hot glue before you accept that knowledge of engineering can inform us whether or not something would work as a building material?
Or would you claim that toothpick-skyscrapers are outside the realm of engineering and fall under the auspices of philosophy, where a redefinition of what skyscrapers and toothpicks are makes them possible, contrary to what those arrogant engineers claim?