All it proves was that the dilemma itself is effective.
The episode and its resolution are crap, because they don't justify her decision. They leave it to the viewer. They do a disservice to everyone involved.
There being a method of resurrection doesn't make a person any less dead. They were dead, but Janeway the necromancer knew how to bring them back to life. All it took was a sacrifice.
Patterns merged, both wholes remained whole they just mingled together in such a way that created a third party. Tuvix is quite literally a schizophrenic fever dream for both originals..