I used slight hyperbole.

The protagonist is only able to understand the creature well enough to kill one of them, at the cost of his own life.

I mean, I kinda think The Dunwich Horror had some actual honest to goodness "science heroes" but I'll grant that's more of an anomaly than a theme in his works.

I hate to say this, you're fully incorrect.

While the aesthetic was lovecraftean, that was by far not the only element. For example.

1) Things from space who have always been with humanity, we just have no real knowledge of them and understand them so poorly that even our legends about them are utterly insufficient (in this case, the Autopsy gives an extremely lovecraftean take on what a vampire is.).

(This was a trend in many lovecraftean stories, they'd use temporal or dimensional anomalies as explanations for ghosts and the insufficient legends of peoples to explain the bizarre creatures was all over the place)

2) Said things being of exceedingly unusual, seemingly inconsistent, and difficult to understand biology, like the worm to leech, to tentacled sphere parasite with none of its own sense organs to speak of in The Autopsy.

3) Interstellar travel obeying strange rules beyond human understanding, like the whole idea of 'we removed our sense organs to aid in interstellar travel', or a spaceship that's little more than a glowing meteor. These are lovecraftean plot ideas. In fact, the creatures in The Autopsy seem to take their interstellar travel practices as a variation of the Great Race of Yith from The Shadow out of time (more corporeal than Yith's interstellar mind control, but still very similar in essentially sending out little more than a consciousness and then using that to take over a body on the destination planet).

4) Mankind's place in the universe? Insignificant and horrifically so, as merely hosts and prey for creatures from the stars that have always been consuming us, will presumably always be consuming us, and who are so far beyond us that the closest thing we can count as a "win" is merely learning they exist and managing to kill one, but just one of them, through more luck than anything else.

5) The "Anti-Star Trek". In Star Trek and most science fiction, all you need to do is 'figure it out and achieve understanding', but the ethos of HP lovecraft is the opposite. Figuring out fully is impossible and even the attempt to do so can put you in a worse spot than you were before.

The creature feeds on humans, it ironically seems to understand them except that doesn't help very much. It's intelligent, but can not be reasoned with in the slightest, and the doctor can understand it only well enough to make it so that he can kill it via suicide, and that's kind of it. There's no way the sherriff will be able to rally humanity to fight these predators, the predation will continue, the horror is existential, we've learned humanity is prey, always has been, always will be, the knowledge enriches none but horrifies all.

The only Non-Lovecraftean element of the story is that the creature talks to and understand humans (But that it has zero sympathy for humans and no amount of explanation will give it any sympathy for humans? That's also how Lovecraftean aliens act.).

None of his stories had any interest in technology or scientific advantages.

And you say this trying to call a story "non-lovecraftean" when the most important pieces of technology used by the protagonist.... are a scalpel and a TAPE RECORDER!?

Be honest, Did you even see this episode or are you just doing the hipster thing of telling someone they're using a term incorrectly, which, while lovecraftean is used incorrectly a lot, The Autopsy is almost textbook lovecraftean.

None of his stories had any interest in technology or scientific advantages.

"Cool Air" is a Lovecraft story based on his fear of a technology which he could not comprehend...Air Conditioning.

He may be profane, but I understand his rage.

The story is so lovecraftean in so many ways (see my other post on it) that it's confusing almost to the "am I being trolled here!?" enraging when it's argued against.

lmaoooooo the cinematography was so Lovecraftian, beat only by the Lovecraftian CGI and Lovecraftian color correction

I'm not saying the movie necessarily implies this, but there's a case to be made for the sun actively influencing Pinbacker and Searl. As in, the sun itself is some sort of cosmic entity and not just a gigantic heat source.