One thing I like about Ekundayo in contrast to most other Owlcat companions is that no, he doesn't just open up immediately. I'll admit replaying Kingmaker it hit me how fast your party members open up if you talk to them.
To be sure there's some great moments, like Valerie unloading her frustrations about everyone trying to foist a destiny onto her or Tristian discussing redemptive philosophy (with deliciously foreshadowy subtext), but narratively it feels like it's too soon for dialogues that seem to imply that you've had time to become friends. It does let you understand their characters quickly, though I think it does cost some of the authenticity of going back to talk to them as the story progresses, even if they benchwarm most of the adventure.