I feel you're misinterpreting? The idea is the limited mechanics - you're a boss, and therefore have a limited moveset that is highly telegraphed and gives the opponent an opportunity to attack back
It's also a game much more focused on the story, which is itself pretty good, exploring how being a boss and not being able to improve (e.g. get new mechanics) is its own sort of prison, while the hero's victory is an inevitability due to his ability to change and progress.
In that same way, it's a story about the importance of change, and that everyone is capable of it so long as you open up your heart to it.