Might as well try. It's not like there's any evidence on their side.
That's not a logical statement though. To say it's an Outer Path technique because everyone can use it only works if we assume people can't use the other paths, which we can't assume because that's the entire argument in the first place. Essentially you're saying I'm wrong because you're right, which isn't evidence at all. And what about absorbing chakra, which we've seen Madara and Sasuke do? Is that also an Outer Path technique despite only the Preta Path Pain being able to do it?
And Planetary Devastation isn't a sealing technique in the traditional sense. Yes, it's entire purpose is to seal, but by force itself, whereas other sealing techniques use an actual seal, like when you see the black markings encompass the person or technique, or through some "magic" like the Totsuka Sword and Sage of Six Paths Treasures. There's also things like the sealing of souls with the Rinnegan, which doesn't fall under the Outer Path.
Chibaku Tensei is categorized as a
sealing technique, in the 4th Databook.
Shinra and Bansho Tensei, on the other hand are categorized as pure forces - it's stated that the user manipulates a natural gravity field and emits an attractive force from thier palms, respectively - in the Databook.
Plus, if you still want to argue otherwise; we've seen The Deva Path cannot utilize CT by himself so he had to get close to Nagato.
If your next argument is that he was out of Chakra - then, that's also false. We see him ressurecting the civillians of The Leaf with no difficulty, after putting up a planetoid, big enough to trap the Kyuubi. Plus, we see Nagato himself concentrating to build the CT and he himself said he had concentrate. That proves Planetary Devastation is a technique personally cast by Nagato and he is shown to weave the signs for it, himself.
Whereas the other 6 Paths; do not require hand seals to activate thier jutsu except The Animal Path - which is pretty much self explanatory - as signs are always required to summon otherworldly creatures, even the cancelling of The Infinite Tsukiyomi required hand seals.
Preta Path is a type of absorption technique just like the many other absorption techniques, that exist in the Narutoverse. Many are under the misconception that it's a Rinnegan technique because Nagato - a Rinnegan user - used it, which isn't the case. Rinnegan has an absorption technique of it's own; which is unidirectional in it's application, whereas we've seen Nagato using it omnidirectionally and in collaboration with the other paths of his - whereas Madara couldn't utilize them in collaboration with his Susano'o as we've seen and by his own words as he comment's that Susano'o interfered in fully absorbing Jinton.
And, he claims Naruto's Rasenshuriken was too much
energy for him to absorb - implying his absorption technique is limited in it's Chakra intake - whereas we've seen that the Preta Path has no limits in absorption and The Databook states it (that it has no limits on how much it can absorb, and says that the absorbed chakra become part of the user's chakra pool and keeps absorbing like a bottomless swamp.)
I expect a reply addressing all these points in detail or don't reply at all, as we won't get anywhere, going off in a tangent.
