Imma argue in favor of the father, dude is a noble, raised as one and held power few had, he feels that without his power he cant protect his daughter properly and the teachings he got tell him that having kids to prolong the bloodline is of outmost importance
Yet he is open to accept the relationship if Elsa proves that she can get the "power" to do what he cant and he knows her well enough so he too recognizes that she is a good partner for Evie
He just needs time to adapt, like, cmon as if a father having a heart attack over his daughter announcing she is in a relationship wasnt common... What matters is how he evolves his view on it as time passes