That said, they have less of a safety net than the others, with no cable deals to fall back on (which are steadily eroding from underneath the others anyway). However, they seem to be very good at knowing how to run their business, so I wouldn't count them out unless some outside forces take effect.
Their name has been synonymous with streaming for a decade, which will keep them entrenched at least a while longer than they would otherwise deserve.
I think if they had a serious stumble, Amazon would just buy them anyway.
Their business is certainly going to only continue to increase in competitiveness for the foreseeable future. My primary concern, from Netflix’s view, would be Amazon being comfortable buying video content at a loss forever.
At a minimum, they have their original series^1. I would assume that, as part of paying for the various shows to be created, Netflix has rights forever.
[1] https://en.wikipedia.org/wiki/List_of_original_programs_dist...
And at that point, Netflix would be indie content and a few real good Netflix shows. Don't know if people would shell out $10 per month essentially for the Netflix shows unless they can churn out high quality ones quicker.
amazon already built their version of netflix, the only thing they would need to acquire is the original content, and consumers seem to be so fickle over content anyways a licensing deal with the real buyer would be better business strategy. (probably).
I think the original content is what will keep Netflix alive in the long run. There are a lot of other places to see movies and TV shows, but you can only see Netflix original content on Netflix (unless you pirate it).