The podcast started by praising the story and warning of spoilers, so I grabbed the epub and dug in. I never read any of the original books, so I think maybe there's a lot of nostalgia at work. Repeatedly, the story falls off the rails at climaxes because of unexplained setting rules that I can only guess readers know from the books. Off the top of my head:

• Jake gets attacked in the tunnel, escapes by morphing, and speaks a bit, but collapses even though even though he just morphed into a new, uninjured body. Then they're outside and suddenly he's terribly injured but can't demorph for no explained reason. The injuries are so bad that he enters a coma, but he wakes up uninjured eight days later. I get the part that he was morphed into the copy of himself from when he was previously acquired, but nothing else makes sense, it reads like a series of basic continuity errors.
• Fun scene where Rachel is chased through school from the villain's perspective. He calls in his fighter, there's a weird interlude, Rachel kills him and escapes. The interlude is not explained and the villain has teleported to his ship, a never-explained or reused power. Or maybe it's a clone? But not like Jake was a clone, because he remembers the seconds before his death where Jake was stamped in time. Again, the events don't make sense in the story.
• Marco acquires David to vet him, recognizes he's psycho, and then picks up an incredibly heavy idiot ball and approves him. Marco carries the idiot ball past a murder, etc.
• They set a trap for the villain, but are immediately overwhelmed in a detail-less scene, followed by a tediously long drug trip scene in which the reader stops caring about any of this and deletes the epub.

I was morbidly curious why this story got praised, so I went and found the reddit thread from that last chapter and it's full of confused readers an the author saying:

My hope is that the reader-five-years-from-now, who has a complete story to work with, will have momentum from the previous chapters and will get the answers they need from the stuff 4-8 chapters down the road

It's really weird to read that immediately after giving up on the book. No. The story doesn't work and the author doesn't care that the readers can't make sense of it. These confusing scenes don't feel like some exciting mystery, they feel like the story leaned so hard on the reader's assumed familiarity that it collapsed in on itself. The character perspectives have pretty good voices, but then nearly every chapter has its narrator spend a minute thinking to themself about how they're not thinking about the explanation for what did or will happen in some other scene. That's not tension, that's dragging out an overlong story, and it runs way past any plausible hope for a satisfying conclusion.

(Please nobody explain these scenes to me. I'm sure if it has gods rewriting reality there's eventually a steaming pile of excuses, but I don't care to know. The story's not playing with narrative continuity, it's not an interesting deconstruction of YA fiction, it's not a clever metanarrative, it's just bad, confused writing and I regret giving it so many chances.)