I read it through the Gangan Online app. Terranort is already subdued when Sora arrives and Vanitas is dealt with quickly in a version of his end scene where...he basically doesn't go out on his own terms in a sense. Instead of dying with acceptance of who he is and with Ven bitterly accepting, Sora and Ven's words make him mad enough to try and fight before they both kill him.
Terranort, who was being held by magic Aqua chains, breaks out easily once Vanitas is gone making this the second non-gameplay occurence where Aqua's chain-up move fails, and we just get a less good version of Terra's return. Like...the Guardian shows up before Terranort could even send Aqua and Ven hurtling to the ground, he saves em, and then immediately ejects his heart so Sora can blast Terranort who compared to the game only gets defeated because he was apparently so shocked his Stand didn't obey him that he just stood there without being subdued. Which makes it more wack than the game where TerraGuardian at least grabbed him by the head to keep him in place.
A few comments on the chapter in the app bring up the very issue that things are going too fast that the scenes adapted don't hit right, to where a couple are even worried about how RAX's reunion will be portrayed. Well more specifically one of em is starting to think it won't even happen.
I'll say it again. Amano may not have control over what gets cut, but execution of what he does have to work with is still up to him. And it just seems to me that he just doesn't have the heart in him to give it his best compared to 2 and Days. That with what he has left to adapt, he's resigned to just doing basic shortened versions of the game's events without the..."Amano flair".
Edit: In retrospect I HAVE been too harsh. Deadlines may be getting to him, and I failed to consider that at all...I feel like an asshole.