I'm in your boat. I get hit up by Google 3-4 times a year. I was interested once and did the pre-screening. When I got their prep packet I looked it over and then promptly canceled my interview. I wasn't going to review stuff I've never used throughout my 10+ year career.

I'm a big fan of not wasting time, which I why I get stuff done at work and have been promoted twice at my current company in the past 3 years. As a sibling commenter suggests, if Google wants employees who blindly do what they're told, then I wouldn't be a good culture fit. I was taught critical thinking skills in school. Respectfully questioning my superiors' plans from time to time has been a valuable skill.