Just like Kakarot, carote, Vegeta, Dasha, Lulu and so on.
Even Naruto's Kyubi no Youko is kurama, Lama or something.
Both of these statements are correct. The so-called "completely calm down" is a pure heart (whether evil or justice, as long as it is pure)
The angry statement is that he is the prince of Saiyan, and the inferior soldier Kakarot has surpassed Saiyan himself, but he is angry and dissatisfied with himself.
So combining two conditions (the other condition is that the usual strength should reach that limit), it has changed.