The way I look at it, there are three classes of companies when we talk about this issue. There's the "changes the landscape of the world" level, there's the "massive disruption to a segment", and then there's "incremental improvement on something".
None of the companies in this list are, IMO, in the first class. Self-driving cars, insulin injections, freedom from oil, eradication of common diseases, the internet, semiconductors, the smartphone, etc, IMO all fall under this category.
The second class is where I see AirBnb, Facebook, Square, and the such. They've turned their respective industries upside down with something genuinely different and new (as opposed to simply executing better at lower cost).
IMO the majority of your list belongs in the third class - they're great products, but ultimately they are incremental improvements in their field and have not shown themselves to be disruptive. How has Pinterest changed the world? Or Groupon?
Funny anecdote about Groupon - I've talked to some small business owners way back when Groupon was at the tip of everyone's tongues, and it was never perceived as a disruptive force. Business owners considered them an evolution of coupon books, and treated it as a new, alternative marketing channel - it was never truly disruptive.
The whole point of the original post is that we're funding an ocean of "class 3" companies, a small handful of "class 2" ones, and basically none in class 1.