Interesting. The conversation looks like the common BS by the shocked people. It consists of phrases that express nothing but strong emotions and obviously have nothing to do with real planning etc. Conversations like that obviously had many simple Ukrainians just after invasion. That is why I believe it is afakepefrormance. The woman is a cold-blooded power-hungry b@@@ch, she does not ever think like that, but easily can make a public performance (playing a common simple-minded person) to raise up her nowadays low ratings. So I believe that the leakage is intended and is an internal PR action of Julia: she wants to show that she shares the emotions of the people.
As for Russian language in Ukraine, didn't I explain? It is more common than Ukrainian. As for "8 millions of Russians" JD already commented about a "petty" misinterpretation in translation. Keep in mind that former opposition, current government, the list of killed people in Maidan ("Heavenly Hundred") etc. all are full of ethnic not-so-Ukrainians. And Julia Timoshenko herself is also ethnic not-so-Ukrainian despite of her Ukrainian last name that she took from her husband.