It's possible the tool is useless and a consequence of not reading the manual, but it could just be the tool is nice but the examples are too simplistic.
In any case, toxicity aside, publishing a command line project and having someone dismiss the examples with shell oneliners is also a valuable lesson, and I don't think it will make him a worse developer.
In any case, toxicity aside, publishing a command line project and having someone dismiss the examples with shell oneliners is also a valuable lesson, and I don't think it will make him a worse developer.