Last week, people thought Obito absorbed the Juubi correct? No seals at all? Thought it was an asspull? Well this chapter explains it quite well. The seals on his hands were different to when Nagato used Rinne Tensei and therefore were the seals he used to seal the Juubi within him.
Don't jump to conclusions before Kishimoto explains them.
Don't jump to conclusions before Kishimoto explains them.