I personally view the issue from a narrative and Author's POV perspective.
In the past few months, we've been given three explanations for Uzuhiko,
In all three examples, Uzuhiko is first and foremost explained to be using the power of the Earth's rotation/orbit/centrifugal force.
The only time it is mentioned that Uzuhiko is comprised of more than just those quantifiably Tier 5 forces is the databook.
"A new form of Rasengan that utilizes not only one's own chakra, but also the planet's rotation and orbit, plus the corresponding centrifugal and other forces."
However, the statement itself treats the "other forces" part as an afterthought to the main area the power of Uzuhiko is coming from, which is consistently the same across all three explanations, the rotation and centrifugal force of the planet Earth, to which Boruto has created a colloquialism by just referring to it as the Planet's "Chakra".
Not to mention iirc I've heard that the "other forces" part might not even be in the Japanese raws of the statement, which would kill any current argument that Uzuhiko is comprised of anything more than Planetary spin.
which would in turn mean that people like Code and Hidari (People massively above Jigen who is massively above Kaguya or Momoshiki) who Uzuhiko damaged were, until new information points to the contrary, damaged by Planetary Spin and nothing more.
Even from an Author's perspective, Ikemoto and Kishi created these Alien Parasytes that travel from planet to planet to absorb its power and get stronger while prolonging their lives.
The entirety of the Otsutsuki conflict has been about the destruction and preservation of Planet Earth from this same fate as seen with Kaguya, Toneri, Momo and Kin, Isshiki, and now Code/the Shinju.
So they have Bort, the ideological and narrative opposition to the Otsutsuki, create a jutsu that does not allow him to absorb the planet's power like an Otsutsuki would do but instead directs the planet's energy to quite literally fight back against those who seek to destroy it, giving the planet itself a sense of agency over its fate.
And yet Ike chose to make the Planet relevant power-wise, with something entirely tangible, a principle founded in real-world scientific logic.
Of course, we can be wrong, information isn’t set in stone and is changing every time more Boruto data comes out
But until then, accepting what’s currently out with Astricks and acknowledging that more information could come out eventually is the more appropriate thing to do.
If that is confirmed then it can be talked about it then,
also, I have yet to see any good evidence to suggest that for Momoshiki, in a timeframe that would even yield a tier 4 or higher result if calced. so whether or not thats even valid is a topic for a different day.
Not the face of someone that "tanked" anything
Boruto doesn't make Uzuhiko stronger,
he's usually holding back Uzuhiko in normal instances, that's an important distinction.
Because Boruto held back on Code, someone he was trying to get information out of him on the Juubi's whereabouts.
Hidari was someone he was expressly trying to kill.
The one used against Code had less of the Planetary Spin gathered.
the non-maximum output Uzuhiko isn't quantifiable.
the 5B calc measures the entirety of the planet's rotational forces.
Maximum Output Uzuhiko is what uses the entirety of that energy since we already know Boruto "holds back" Uzuhiko's power normally.
This suggests that, at least by currently tangible means, his normal Uzuhiko is unquantifiably lower than the 5B calc.
Like I already said, I agree to an extent.
But I don't think Boruto the series is going to all of these lengths for 10+ years lore-wise to create relevancy for the
power of a planet or the
power gained from devouring a planet, just for us to look at an already sketchy argument for Tier 4 or Tier 2 characters and say "this is way more accurate."