In the article it compared how it took kakashi, sakura, sasuke, and naruto to beat madara aka kaguya but I then thought about pain and seeing as pain was technically six rinnegan users and naruto beat them by himself it kinda throws off the whole basis that rinnegan can be equal to tsienegan...
I recently read a article on how tsienegan (as featured in the latest naruto movie) is not on the same level as rinnegan when all facts point to the realization that it is at least on pay with the rinnegan.
I'm new to this forum, but have been on narutobase forever. jus an intro. so if I remember correctly rlly far back wen neji died :'( u could see lee kicking obito(still in toby form) in half!?! look it up I don't have the time. its interesting.