I think it is good because they really are perfect for each other and even though Thalia is a hunter and it might not happen I still think that if it did it would be good for them both. Especially Nico. Maybe it will open him up a little so he will be zaidi of a people person.And it would help Thalia cause she would always feel protected. It would also help her forget about Luke.
I don't really ship them. I mean I don't mind them and stuff in shabiki fictions but they were never meant to be. I have always wanted Luke and Thalia to be together but Luke died :'(. Something else that bothers me is their cousins. I know their isn't any DNA in the gods so technically speaking they are allowed to tarehe but still. Their not a bad couple but their not the best either.