Board Thread:Manga/@comment-38849221-20190321163015/@comment-30281369-20200614192043

Reiner wouldn't be much help in convincing Pieck or Porco. If anything, bringing Reiner to the mix would just make Porco either completely against the plan, or worse, have Porco blab Zeke's plan to their Marley superiors, in which the secret of Zeke's royal blood would also come into light as well. Pieck may or may not follow suit; to be honest I doubt she would as she would be risking her family's safety.

Once again, Eren didn't have Zeke's full trust, we saw evidence of this with Zeke's question to Eren when they first met in Marley, followed by when Zeke and Eren finally touched and met within the land of paths. When they met there, Zeke, while chained, had asked Eren to command Ymir to render the Eldians sterile, this was Zeke's last test to see if he could completely trust Eren. After all, Zeke was already able to remove the chains and could've commanded ymir to render Eldians sterile long before Eren even arrived. If Eren had complied, Zeke wouldn't had chained Eren and may had even forced Ymir to follow Eren's command.