In the game I'm playing, my O-toyo's have failed seduction twice. Course, it was against C'tis too. Methinks lizardmen don't find humies that attractive.
I see your point with the Red nekoni atleast, when compared with say, Neifel giants with reg giants. Perhaps keep the Red Nekoni recruitable units but make a commander version for them, ala the Niefel giant leader for Jotunhiem. I know you said perhaps not a commander, but maybe?
Of course I'm going to redownload for the national summons. THEY'RE FREAKIN NATIONAL SUMMONS!!
Little too excited?