You have not actually proven it is an Rinnegan technique but simply made a deduction based on the word "Heavenly", it is an erroneous deduction as not only have you disregarded the Handseals made by susano'o [
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Tatsu, the Dragon seal and
Tairitsu no In which represents half of a seal that can be used
to activate a ninjutsu but also generalized a single word instead of factually proving it was a Rinnegan Jutsu. The technique itself cannot be used outside of susano'o as not only was Nagato a rinnegan user unable to perform the technique but Madara had to activate His susano'o and cast these seals for the Meteorites to actually appear. There is also other canonical evidence pointing towards it being a technique Madara wielded prior to activating the rinnegan being:
The name of the technique (though unofficial) is inline with the other God Realm powers of the Rinnegan. More importantly, the conversation between Kabuto and Madara at the time implicitly confirmed it to be a Rinnegan level ability. After witnessing the destruction, Kabuto marveled at the power of the Six Paths.
-> Shikaku having no knowledge that madara possessed the rinnegan immediately and without second thought, attributed the "Doton like" technique as Madara's jutsu only implying that He has conducted research/come across such a jutsu that may have been used in the past by madara. His credibility is one of the best in the series [
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Of course he did, who else could have done it?
Muu?
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> Madara's recollection that the sight of his two meteors as "A view he hasn't enjoyed in a long time" implying that he has used the jutsu prior to Awakening the Rinengan as we have been told exactly what events occurred after the doujutsu's birth in his old age [
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It's a view he hasn't seen since the days long ago when he would reshape the landscape with the power of his Perfect Susanoo. One swing of his sword could destroy all creation.
Again, within that same panel, Kabuto claimed it was an ability of the Sage of the Six Paths.
A Similar misconception was made when majority held the belief that Perfect Susano'o was a Rinnegan based technique due to it being prominent at the point of activation. The evidence is clearly against your theory. Following up on events when Madara used the jutsu:
That majority was always off base. Madara said that only Hashirama could stop him, and clashes between the two would reshape the landscape, but now that Hashirama is no longer around, the maps wouldn't change so much.
Madara's ability to reshape the landscape was thanks to the Perfect Susanoo; he hadn't yet obtained the Rinnegan back then.
-> He activated the Rinnegan to absorb naruto Rasen-Shuriken
-> He activated Susano'o
-> Weaved handseals along with Susano'o
Then the appearance of the two meteorites occurred.
Indeed. A Rinnegan ability that is used in conjunction with Susanoo - what's the big deal? We're not dealing with separate ocular powers here. The Rinnegan is the final stage or stop for the Sharingan; the Rinnegan is not an alternative path. We're building on old powers as new powers are obtained.
The Mangekyou Sharingan's Susanoo becomes Perfect Susanoo with the EMS; Susanoo can now pull meteorites from the atmosphere once the Rinnegan is achieved. Through obtaining Hashirama's power, Madara now wields a fraction of the Sage's power, thanks to the doujutsu he was able to obtain.
Combination of "text and imagery" push the reader to credit the Rinnegan as the required ocular power needed to utilize this power.
