I wouldn't call this series a "trainwreck" so much as a "train that ran out of steam."
The series was always crazy bullshit since episode 1; just look at the whole atheists versus religion thing, or the crazy super-powered cyborg shenanigans. Rather, the series has pacing and focus issues, along with dialogue and character issues.
For starters, the series has odd pacing where it feels like that scenes or information is missing at times, leading to what appears to be silly melodrama. For example, Tempest killing and eating the creature raw, and then freaking out because it's pregnant? That comes of as silly, ridiculous and melodramatic because as far as we know they've only gone a day or so without eating. And why would Tempest care about the thing being pregnant? Thus, it feels like something is missing and thus melodrama.
This is despite the episodes being long. The series can't focus properly on it's characters, so the dramatic moments often lack the proper setup to sell them, resulting in an arbitrary melodrama to them.
This could be passable if the issue was that it focused on the characters and made them entertaining to watch. But the series is very unbalanced with it's focus with many of the characters barely appearing or talking. And when they do, most of them are not entertaining to watch; there's not enough dramatic relief to counter balance the dramatic tension. For a serious story this could work; except then you need good pacing and setup to sell the melodrama which it doesn't.
Thus, the episodes come off as a bit overly long and filler-ish.
That said, it's not a bad series; it's okay, and interesting enough to watch. But there's wasted potential and I understand why some people are done with the show. The plot is going nowhere fast while simultaneously feeling nonsensical despite the ample time it should have to sell the plot.
