Did Suriel know that Makiel's plan to 'fix' fate on Cradle (e.g. deal with Lindon/Eithan) was to wake the Bleeding Phoenix Early, potentially killing them? Was Makiel's plan actually to kill them, or was he being honest in terms of just trying to get them to advance off iteration faster?
Makiel was being honest, but he was also working on many levels at once. Either they die, or they get forced off Cradle, or they get pushed into a situation from which they can’t affect fate anymore. Win-win for him.