lol, Kishi kind of trolled us, everybody thought it was Obito from the beginning and then he said it was Madara and everyone came up with these complex theories. If it really is simply obito then Kishi has allot of explaining to do. He has to explain how Obito's motives changed and also all these time line plot holes. For example: How was Obito able to fight the Fourth because Obito would have been a kid? Was it Obito who helped Itachi during the massacre or Madara? If Izuna is using Obito's body it will be easier to understand how Tobi knows so much about the ninja world but it wont answer some plot holes. Even if Izuna is using Obito's body he wouldnt have been old enough to fight the Fourth.
In regards to the chapter, it wasn't that bad. The flashbacks and the lack of dialogue is really emotional for us people who always thought Tobi was obito, even through the Madara bullshit. People need to calm down and wait for Kishi's explanation. Although, Kishi has allot of explaining to do.