Singular Point Anime and Novel Combine Justification

The novel is an expansion of the anime, not a separate universe. Both the novel and the anime share the same writer, Toh Enjoe. He also serves as the science advisor for the anime.

Series Composition · Sci-Fi Research · Script 

Toh Enjoe

Godzilla Singular Point

Toh Enjoe

The documents at the beginning all came from him.

(Below) In the end, both the overall framework and the specific details were completed by Mr. Enjoe - including the copywriting of the Otaki Factory official website, system logs, and charts in the documents left by Ashihara.

If you still don't believe it, let's see what Enjoe himself has to say.

Q: When adapting the anime into a novel this time, what aspects did you consciously focus on?

A: Explaining the finer points of the theories that appear in the anime in detail. In anime, explaining intricate details often necessitates relying on lengthy monologues, so we consciously minimized expository descriptions. In contrast, since novels are word-based, we were able to incorporate diagrams and explain concepts like the supermaterial "Archetype." Furthermore, novels are meant to be savored for their descriptive passages and the nuanced enjoyment of every single word in the dialogue. We included lines of dialogue that had to be omitted from the anime script. On the other hand, I believe scenes depicting battles between kaiju (monsters) are better expressed in the anime. The anime and the novel complement each other, so I highly recommend experiencing both together.

Source: https://gendai.media/articles/-/98841?page=3

The parts involving scientific terminology were his key focus areas. And he believes the two mediums are complementary.

The narrative progression of the anime and the novel is completely identical. The only differences lie in some minor details and dialogue. Regarding dialogue, as Toh Enjoe himself stated above, some lines were omitted from the anime for pacing reasons. As for differences in other aspects, they are simply variations in action scenes. This is perfectly normal. A novel is text written by one person, while anime is a visual medium produced by many people together. For action scenes, the script at most provides a general outline, and then the storyboard artist develops it based on the script. In the novel, Godzilla's ray taking down two planes can be written by one person in a page of text. For anime, however, runtime and production budget must be considered. Similarly, this is why in the novel Godzilla fired 5 atomic breath blasts in the final battle against JJ, but only fired 2 times in the anime. These [scenes] are very costly.

Therefore, believing they are independent based on this is utterly absurd. If we follow this logic, in the Marvel Comics universe, the same character written by different writers often has more contradictory feats. Yet, as long as it's the same continuity/universe, they are all grouped under one page and share the same scale. Applying a different standard here is very unreasonable.