See that's what I don't get Our Guardian was tricking us all along, so that just makes the PC a complete dumbass for trusting an Illithid, baring Olemuum...
Putting all that work to seem actually trustworthy with all those options... hell you even have a chance to "kill" the Guardian, not that it actually works...
It all just feels haphazard... There should be a quest line where the Emperor (is it just me or am I the only one who wanted him to be a female, I picked a female Guardian after all) does have our best interests at heart...
Maybe I'm just salty idk.