Glad Mauler changed his position on House of the Dragon
I dropped the series in the middle of Season 2, it was apparent that the showrunners and writers have no intention of adapting Fire & Blood. Instead they used the unreliable narrator structure of the book as an excuse to pervert the narrative as much as they want, so they can write their own vastly inferior story. Seemingly, the point of their story is just 21st century Hollywood misandry.
At the time of Season 2 release Mauler and the crew were clearly hesitant to criticize it too much, despite the shortcomings of the writing. They had their reasons and one of them was that Mauler deliberately stayed away from the book to analyze the series on its own merits.
I can imagine that from that perspective, with series on its own, Season 2 may be considered something like 6/10: story is clearly deteriorating, but it is hard to say how bad or good it may get. If you read the book, however, it is much worse. I consider it closer to 3/10 just because so much potential was wasted, so many good things from the book were cut and replaced with fanfiction garbage.
It seems like the crucial change happened during the interval between Season 1 and Season 2. Writers went rogue and started to do what they like. It is not like adaptation and changes are bad, Season 1 had fair share of the changes to the story, but from the start of Season 2 the series went into its own direction. Fundamental problem with that is the fact that they are getting stuck between two worlds.
They don't respect the book or its author, they don't want to follow what is written. At the same time they can't really write their own story with freedom they need because it is still an adaptation and central plot points still have to happen. As a result the series' story is a huge contrived mess. The writers insert their fanfiction even if it is not fitting Fire & Blood story, while the book plot points happen even if those don't fit the fanfiction. It is like two minds trying to move one body. That sort of writing is a fertilizer for plot holes, ruined characters and thematic dissonance.
It seems like at the time of early Season 3 Mauler and Fringy caught up on what is going on, despite not reading the book. They are right in tearing Season 3 apart, it is only going to be worse because the rift between two visions of the story is going to grow more and more, by inertia or intent.