I think the sanctity of St. Bernadette is very often underestimated. I also think those who portray her in the newest plays and films misinterpret/misrepresent her - much in the same way as the film "Therese" overly romanticized the life of St. Therese.
I also think there are many similarities between St. Bernadette and St. Catherine Laboure. I think they were very simple, practical and uncomplicated - and excellent examples of the 'little way' of St. Therese, before she conceived of it as a sort of 'doctrine'.
I also think that if we want to know what the Blessed Virgin was like when she lived on earth, we should study the life of St. Bernadette and St. Catherine - and St. Therese.
As for those who claim to see or hear Our Lady today - maybe not so much. In fact their lives may be the best way to discern if their supernatural experiences are worthy of belief.
Just a thought.
I may be wrong.
Don't listen to me.