It's been a while but this is the one on Taris right?
Yeah, you should have sent Vette to navigate the mine field in order to get to the turrets (she's quick, she has cunning, she's a slicer, etc), Pierce should go to the landing pad (he's the big spec-ops tank) and you take Jaesa with you. Malavi stays behind and 'coordinates' as the officer. At the end of the instance Malavi will approach you and tell you what an excellent choice you made sending Vette to navigate the minefield. That's probably the only difference, that small exchange with Malavi so don't sweat it. I think that it was just a fun RP type of side where you try and identify what role each of your companions play and match their strengths to each job.