^ My impression from that clip is that Sumire looks as much like Tsuji as she does Maachan, especially from profile.
The wall of text, which seems to pretty much correspond with what Makoto was saying, is, as best as I could decipher, this:
みんなが集うほっとすろ場所 (お茶の間) と、ラテン語で 「規模/基準」 という意味をもつ。 (NORMA /ノルマ)をかけあわせた造語で 「オチャ ノーマ」 と語みます。(お茶の間)を楽しませる、新世代の (スタンダード)となるような存在になってほしい!という願いを込めて名付けました。これからの時代に、メンバーの多彩なキャラクターを活かし、老若男女みんなが楽しんでいただけるパフォーマンスやコンテンツを届けていきます。**
which according to deepl.com means:
The word "Ocha Norma" was coined by combining the word "ochanoma," a relaxing place where everyone gathers, and the Latin word "norma," which means "scale or standard. (The term "Ocha Norma" was coined by combining the words "ocha" and "norma". (The name was coined from the combination of "ocha norma," which means "scale" in Latin, and "norma," which means "standard. We named it with the hope that it will become the standard for a new generation that will entertain people in the tea room. In the future, we will utilize the diverse characters of our members to deliver performances and content that can be enjoyed by people of all ages, men and women.
** I am an idiot for retyping that mess manually when I now see that it is in the description of the video on YT.