>>1372487The thing is english phonetics, you can't just properly read an english word outloud without knowing its correct pronounciation first. Meanwhile in japanese katakana is pronounced the way it's spelled, so when the girls translate the text or try to read it in romaji they completely butcher it because they literally have no way of knowing how to say the words without studying or being told how.
English is an easy language to learn all things considered but for many people it might feel like having to learn 2 languages at once, a written and an oral one, pic related.