I gave the new chapter a 2 out of 5 for the first time since... I dunno, I'm relatively new here, but the last chapter I would've given that rating was probably at the end of WCI when the ship switching shenanigans happened.
The difference between this chapter and a lot of things that happened beforehand was the suddenness of things. I can excuse stuff like Tama's role because we already knew it would happen 100 chapters ago when she did the same thing with Speed. Plus, they might be more or less fodder, but it still turns the tide of the war, so giving this moment a few pages was quite necessary to showcase its importance.
The connection between Tama and Big Mom was also built up long before the war, and I didn't see "Mother Mode" making much of a difference in the outcome of her destroying Page One and Ulti, so I was also okay with that.
But this new medicine is REALLY badly incorporated into the story. I probably wouldn't mind it as much if it had been introduced back in Zou, but doing it like this is just cheap.
BUT... I'm also someone who has a lot of positivity and hope when it comes to One Piece. There is one thing that would probably make me accept any plot convenience that Oda throws at us: If the alliance fails anyway or at least suffers some major losses. So many things going well for the alliance doesn't matter to me if the end result is devastating for them nonetheless. The chances for that to happen might be slim, they might be in the single digit percentage, but they are there. Everything went well with Ace's rescue as well. Until it didn't.