>>716083374Since the three endings are the only times we hear Mother Sphere speak, we only have a handful of lines to get a sense of who she is. But what she does say is rather vague and enigmatic. She's almost speaking in riddles. So, I wouldn't assume anything is all that clear about what she is saying. It's also kind of funny how EVE/Lily are speaking as if they're the audience, asking what the player would ask in that scene.
But I'm not sure that she's clearly disappointed that Father is gone. Yes, she eulogizes Adam for a bit, but she doesn't immediately follow up that eulogy with the line about being disappointed. She mentions that later, which suggests the sentiment behind those lines are not necessarily connected. I also don't know that EVE played the role perfectly.
We don't clearly know what the EVE Protocol is. We have clues and we can guess. But we don't exactly know. Because we don't know, we can't know what Mother Sphere's intention for the EVE Protocol is either. So, it's hard to tell if EVE played her role perfectly.
But to directly address your post:
>She's clearly disappointed that her father is gone. After reviewing the dialogue of the other two endings, I'm not convinced that is entirely the case. If MS is disappointed that Adam is gone, it doesn't make much sense why she was sending Airborne Squadrons to either kill or merge with Adam. Adam disappearing should be an expected outcome if that was part of the EVE protocol. Only in the Return to Colony ending does Mother Sphere mention something other than "disappointment". Instead, she mentions "bittersweet". Which means MS is kind of glad Adam is dead in that ending.
Hold on, I typed up the dialogue in the other endings.