I thought that was a pretty big plot hole too, since the EMH can snitch about what he saw Aggie doing. An EMH would probably make an instant report to the captain unless RIos turned off that option. Or if Aggie somehow erases the EMH's memory, but she can't even work a transporter so I doubt she'd have the knowledge.Also what is the point of an EMH if someone who is actively murdering a patient can turn it off.
I felt it a bit weird to have Jeri Ryan come back as Seven of Nine and then have her play a character that's basically nothing like Seven of Nine.
You're right about that. I definitely get a Firefly vibe from it and also some BSG. That's fine, though.