At that time the Anglo Saxons where foreigners among the Celtic Britons and their Romano British Culture. So he would probably be surprised, that no one is speaking Brittonic or Latin anymore. He might have gone to great length learning those native languages when he arrived in Britain and now people only speak a weird, very simplified baby version of his own West Germanic language with half the grammar and consonants taken out and the vowels all shifted around like a parody of his language.
At that time the Anglo Saxons where foreigners among the Celtic Britons and their Romano British Culture. So he would probably be surprised, that no one is speaking Brittonic or Latin anymore. He might have gone to great length learning those native languages when he arrived in Britain and now people only speak a weird, very simplified baby version of his own West Germanic language with half the grammar and consonants taken out and the vowels all shifted around like a parody of his language.