The KE of a mass this large at re-entry speed is 7.77x baseline 5-A. Using an asteroid's speed would be even higher.
The notion that this is equal to Earth's GBE is erroneous. The meteor was going to completely destroy the planet, which would inherently be FAR beyond just moving its mass apart beyond its GBE pull.
Especially given the fact that it's very likely a large object collided with our planet in the past and it survived.
https://en.wikipedia.org/wiki/Theia_(planet)
Many parts of our world are explained by the collision between ancient Earth and the planet 'Theia' with these two bodies forming the Earth and moon (a small planet in its own right) we know today. Theia is estimated to have a mass similar to Mars which is 10.7% that of Earth. That's a KE of 1.5655598E+31 J that Earth for all intents and purposes shrugged off using a lowball of re-entry speed. 25 km/s gets 1.9968875E+32 J, just shy of the GBE. So Earth can take quite the cosmic punch.
A lesser mass than this would be blatantly wrong and not destroy the Earth.
Now for recalculations of this strike with all three reasonable speeds:
7km/s (re-entry) KE = 8.77884E+31 J
11 km/s 2.167836E+32 J
25 km/s KE = 1.11975E+33 J
As we can see, the only ones that would be above an energy threshold Earth likely survived when it was smaller and has less mass would the speeds of an asteroid. And the 25,000 m/s version is the only one above Earth's GBE which would actually destroy it. So it is the one that is most reasonable. Equal or lesser force doesn't cut it.
I would go off about the High 6-A stuff being wrong in every sense of the word but that's been done now dozens of times. It's the same song and dance. The meteor would destroy Earth, not life wipe it, every single version of this omen says this verbatim. Global flooding/full control of Earth's weather didn't destroy this Earth according to the movie so global scale events are not enough to destroy the Godzillaverse Earth. That rules out a Chixuclub impactor or anything of the sort. The only reason that end was even done was because of the erroneous assumption that Burning Godzilla's meltdown is baseline 5-B, as pointed out in the calc itself.