not having the option to save those three lizards is a sign Axel trusts you less than Nauxus, so you were on the good way to have Nauxus date you and give you the emblem after the war. It is technically possible to have both like you enough, but it involves killing the spy.
It might be a way to reach another ending in the final part, who knows, Eyvind without enough emblems to escape... or we just get it later lol.