I don’t know where you get the information tho, it’s factually false.

Japanese have have /h/, /ç/, /ɸ/ consonants in ハ行 (written as ha - hi - fu or hu -he - ho but pronounced differently). The consonant /ɸ/ is generally transcribed as f in alphabet.

フ(f+u) is the only letter that pronaunce /ɸ/ in regular ハ行, but ファ行 (f + other vowels) indicates sounds with /ɸ/.

Transcription of wifi in Japanese is ワイファイ, not ワイハイ.

I think they can retain customers’ past flight records and maybe list of media played in flights. That said it’s almost guaranteed some ad marketing corpo is behind, and EULA is always vague enough to allow sharing external party…