A Chinese second grader would probably not be able to answer "How many Rs are in the word 草莓?" It's a valid critique.
A non-English speaking adult wouldn't be able to answer the question either, after the question was translated to their language. Maybe you wouldn't want a non-English speaker helping you to write an acrostic in English. Luckily nobody is marketing LLMs as "great for designing word puzzles" though.