Of course! Luna's trademark is to be self-doubting after coming through a challenge.
I guess what he's trying to say is that despite what they see as Luna's poor choice of words to Milov (She's only human), she was still defending Jayden.Say. Is my English failing me, or does Dominic's first sentence in the last panel not make any sense at all? She was loyal to Jayden despite defending her? Are defending somebody and being loyal to them mutually exclusive now, or what?
It was the intent that mattered, not the words.