No wise old pro who was actually worth listening to I ever met in any field ever says things like "my young Padawan". Saying that makes you look like two kids in a trenchcoat trying to pretend to be an adult.

Which in this case is not inconsistent with this apparent misunderstanding of what moving goalposts means.

To use your own silly words, targeting the features that are the most used is litterally one way to choose challenges wisely.