That's why I've said "as written". I'm sure this was designed by people who hold the mindsets that doesn't do reflavoring (the recent feat allowing you use deck of cards as spellcasting focus from Book of Many Things is another good example) and also thinks Fighter and Barbarian and Monk are just "guys at the gym". Sadly same sentiments were in WotC since 3rd edition, hence why options martial should get were all given cringy anime names and relegated to new classes and explicit called magic by the text.