Since many people didn't understand this joke at all, here's a short explanation.
These Balenciaga videoes became quite popular in the last few weeks(~2023 april).
Long story in short you can create funny AI made pictures and make them say different things.

The characters and their original gw quotes with some changes are the following:
1. Gwen: I was a prisoner of the Charr, I escaped. Now I want vengeance.
2. Mhenlo
3. Prince Rurik: As a boy I spent much time in these lands. Look at them now.
4. Cynn
5. King Adelbern: You are no longer my prince, you are no longer my son.
6. Koss
7. Shiro: Fear my blade
8. Asura
9. Kormir: All our efforts and sacrifices have brought us to this point. Now is the time for heroes. Prepare yourselves...today we end this nightmare once and for all. We cannot fail. We shall not fail.

I know some people will not like this type of humor but it is what it is, thanks for watching the vid!