I would still recommend watching at least nine episodes of the Netflix Norwegian series of Ragnarok - for its impressive depiction of the mythic past re-emerging into a modern industrial town - but there is no doubt that the series lost its way during the second series and did not finish well.
It was corrupted by just the usual stuff: Leftist Political Correctness and money (funny how they always go-together nowadays). Corrupted by PC; because it was always in-there, upfront in the plot (environmentalism and sexual revolution - presented as unreservedly Good Things).
And unrepented evil always does corrupt. That's what it is for.
So the Leftist propaganda inevitably grew to overwhelm the mythic truth - and damaged the quality by egregious plotlines, and the multiplication of left-symbolic incidents and characters.
And money? Well, the inner story dynamic pointed to the need for a conclusion, a denouement, at the end of Series 2; but (I guess) financial considerations dictated turning the series into a soap, by stringing-out and delaying the resolution, at whatever price of both character consistency and narrative drive.
It kind of petered-out... to prepare the way for series 3 (4, 5?).
So it goes - and I knew it would. Nonetheless, there was something unexpectedly good and true there, at first.