I don't think it threatens their existence (but I'm not in that industry, so hard to speak for them).
But I can imagine that if people get more experience with how the industry works before they actually join, when they do join, it'll be easier for them to get started, compared to now where the disconnect between production school and actual production is very different.
Same reason studios are starting to adopt Blender, it's so much easier to get experience and knowledge with, because you don't need to go through expensive curses to learn it.
Of course, curses help speed up the education, but it's not longer a requirement, just a helping tool.
I don't think CC threatens the livelihood of creative industries, but Netflix isn't in a creative industry. I don't think Netflix, as a publisher, wants to promote free and open licensing. Their only product is licensed content. I suppose there could still be a market for a streaming service of free content, but it isn't as safe as the way things currently work.
Maybe the service Netflix is not in the creative industry, but the production company Netflix is absolutely in the creative industry, they produce their own original content and shows. Netflix is not only a content provider but producer as well.
But I can imagine that if people get more experience with how the industry works before they actually join, when they do join, it'll be easier for them to get started, compared to now where the disconnect between production school and actual production is very different.
Same reason studios are starting to adopt Blender, it's so much easier to get experience and knowledge with, because you don't need to go through expensive curses to learn it.
Of course, curses help speed up the education, but it's not longer a requirement, just a helping tool.