I see where you are coming from and the evidence you posted makes sense But
Madara clearly said the unstabilized version was Perfect susano'o. Even if the rinnegan stabilizes it it is still the same tech..
For example the Juubi is incomplete but does that make it something else? No. Its still the Juubi. Same case with this. I respect your opinion but i have to disagree.
Quoting myself:
that's what's misleading most people,
they think Perfect Susanoo is the name of the tech, and that you can have "perfect" Perfect Susanoo and ''impurfect'' Perfect Susanoo..
where as it is referred to as Perfect Susanoo because it's the most complete and perfect form of the Susanoo, it's like
so there is only one PS - the complete,stabilized "perfect" version of the Susanoo
and for the juubi analogy it's like Perfect Juubi - not being the Juubi itself, but it's complete and most perfect form
So at least as I see it Perfect Susanoo i not the name of the tech is just a description of the Susanoo being Perfect - stabilized
BUT hey, we'll wait to see next few chapters, no biggie