Whatever interpretation you care to take from it. When destiny and fate gets involved, stories seem to be turn more toward tragedy and sorrow – ancient tragedies, gods meddling in human affairs, destiny is often unkind and malicious, even creepy, not saying it’s right.
The fantasy tale of Snow White tries to transport us to a universe where destiny is kind and brings the right people together. And providing that escape from reality seems to be a theme in what Walt Disney was trying to give (or sell if you’re not feeling charitable) people.
Pulling the train back on track, the dwarfs in Snow White are also fantasy and should never be confused with complex and flawed humans.
But we have motion capture and passable CGI technology coming down in cost to where we don’t need to involve short humans to portray small mythological creatures. My feeling is that Disney would be making a mistake to cast dwarf humans as the Snow White fantasy dwarfs rather than using CGI.
I’m kind of excited to see where the new consciousness takes dwarf humans, I hope Peter Dinklage and others get more exposure in media as the kind of real people they are.