Not really. Somethings Authors say can completely retcon the story so dramatically that the entire plot would change. For example CW Flash has canonically never ran faster than sound until fighting Girder in ep 6. This statement means everyone in the train derailing scene in ep 4 is dead AF.
Or Goku only being able to lift 8 tons in Base (as a adult with power level in billions no less) means that he would never be able to move the rock Roshi told him to move and thus never complete his training.
There are also Opposite effect of this. Like video game scaling which borders on delusions.
Like Kratos being rated Class Z and Immeasurable despite having multiple and by that I mean in the 10's of dozens instances (scripted for story progression with dedicated dialogues and cutscenes no less) where he has to go on detours and roundabouts because of stuff like boulders in his way.
Or Doom Slayer being rated G class despite requiring key cards for doors and again needing detours due to obstacles. "For killing a titan with bare hands" Where *****, wasn't Dark ages "LORE EXPLORED CINEMATICALLY" I don't see anything past building level without the mech.
You're confusing elements of the argument.
I'm not saying that authors think about the feats in their stories in relation to the accuracy of a calc or comparable to that level of accuracy—quite the opposite.
I'm saying that authors don't think about that, but calcs based on visual representation are the best you can get AS LONG AS the author doesn't directly express their vision.
Even without citations, like the horikoshi one, or calcs, authors won't be able to achieve pinpoint consistency, true, but an author can still maintain a certain level of ballpark in the story
For example, a character who, with serious blows, destroys walls, rooms, buildings... All of those feats aren't on the same level, but they have a ballpark where their power is estimable. They're not jumping from wall to planet level durability and then being damaged by something Explicitly building level. And even if that were the case, if the character then continues to endure things related to a wall-large building, you can simply see the planet feat as an outlier to how the author normally represents it. And well, there's nothing wrong with calculating those feats and estimating that they would end up being able to withstand attacks of 2.3 tons.
The whole argument about "how is it possible that Flash could achieve that without being hypersonic just for the lore?", is kinda Fallacious, its straight up because it's a fictional story. Even the wiki itself doesn't assume that because a character in lore is capable of exerting a measurable characteristic in X element, that makes them capable of replicating all the elements that would actually be required, such as assuming MHS characters are Town because they hit at that speed, or assuming they have good heat resistance if the story doesn't show friction as an element.
Even the wiki's analysis of fiction accepts that in the context of the story, implications that mathematically should exist can be ignored because fiction is a general imitation of reality, until it shows us elements where it contradicts itself, like the ones I just mentioned.
For example, in Dragon Ball, you don't assume that Krillin is secretly not a human because only by training can he do things that no real human could EVER achieve. You only accept that within the logic of DB, a human can achieve those things even if they are just human.