I think it'd be a good move to avoid assuming too much about what equipment someone might have. A wok isn't too far out of what even an absolute beginner may have, maybe they got it with some other cookware or as a gift. As others have said here, the writing does come off as kinda condescending. Granted, I'm a somewhat experienced home cook and I haven't tried the app yet, but if I'm learning something, the last thing I want to do is have a tutorial app sound condescending, even if that's not the intention.