Aya Komaki did an excellent episode, really, and although there wasn't much action, I liked it a lot. It was like a small slice of life inside One Piece, but it felt good. And see the flashbacks where X Drake was and then Ace was good.
I still ask myself what Ace, who has been reckless as fuck, never tried to do something about Kaidou and Wano.
Or maybe it will be brought up later
When I read that part in the manga, I also asked myself the same thing.
It seemed strange to me that Ace did'nt do anything at that moment, but what we have seen of him in Wano really is little information and for that reason we don't know if he had the intention to do something or not.
I understand that he didn't intervene in the situation of Ryugu Kingdom because at that time his main objective was Whitebeard (novel A) and that he didn't intervene in Arabasta's situation because he was engaged in hunting Blackbeard … He also had no ties of friendship with the people of those countries like Luffy, but of course, in Wano he did make friends with people like Tama, and that's why I think he wasn't indifferent to the situation in the country, which made Tama and others suffer (Ace it wasn't what was left of arms crossed if his friends or nakamas were in problems).
Surely there was something important that limited Ace to doing something for the country at that moment, but we still don't know what really happened (whether he wanted to do something or not, or whether he did something or not).
Stranger I think that Whitebeard at the time hasn't been done anything by Wano, because he did meet Oden. I think Marco's message to Nekomamushi has something to do with it (the issue of Whitrbeard and Ace in Wano).
Anyway, what I say is speculation, and I think Oda will answer those questions later in the manga (maybe)