The poor woman certainly would have been better of with a more active first expression off magic. Something undeniable.
Having the Sight and no way to do anything about the monsters in our midst sucks.
Even Carlos or the girl in the Underways that we rescued were better off, even all the Cauldron talents.
Edit:Of course an Exaltation would be even better.
It's not that she did not have non Sight power so much as you have to believe in magic to do it. Since her first expression of power was the Sight and she did not believe that really, she could not to anything else consciously until she wished herself out that window.