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Relax, this is just a manga. The author is just another human being.
You sometimes get inconsistencies, it's not the end of the world. Just enjoy the rest of the series.

There argument here is that "you're not surprised that Tobi can travel great distances almost instantly, but you'd surprised that he can gain age in a short (earth-)time?"
I know I shouldn't bring...

He also has (and had, all the way along) blindfolds as well.
So I guess either "it doesnt want to listen to anyone, or they're just decorations.
マゾ stuff, maybe :P

Assuming the spoiler is real...

Edo Tensei binds the soul to a body -and it's quite obvious that Madara has his soul right there, so it's not him.
It can't be any of the previous hokages, as...