I am not trying to be rude, but if a boss fight is scripted, then over coming that boss isn't skill, it is memorization test. Last I checked, people with enough determination can remember anything, so why not have a game feel more intuitive and responsive while exercising your memory? People who act, and react to unknown, and random occurrences with success are skillful. I can read, memorize, and recite pieces of work from writers, poets, musicians, but it doesn't mean I have the skill to produce similar work. I know some people like to complain about anything and everything, but this seems pretty credible.