Hanar can hold a gun in every tentacle! You know how many guns that is? And the elcor! They are walking TANKS! You can fit anti-tank or anti-infantry guns on top of them and have them mow down everything in their path!
But the hanar is the star: Blasto, the first Hanar Spectre! The elcor is Dill: The Remorseful Killer! They are just as important as Kick-Ass Femme Fatale Quarian!