If the companions would be in your head always, then you couldn't for example hide the body of you know who in the Durge story - as I understand, you have to activate that connection and some experiences are shared. You can for example share with Lae'zel, why you did let the Guardian live in teh creche scene, otehrwise, she doesn't know, why.
However, there could be an option in dialogue to signal them, that your are about to deceive someone.
Last edited by fylimar; 07/11/23 05:01 PM.