You mean, some tech companies understand the difference between Data Science, AI in general, ML and Deep Learning and try to utilize the best tools in hand to h

You mean, some tech companies understand the difference between Data Science, AI in general, ML and Deep Learning and try to utilize the best tools in hand to handle their data. But what is driving this hype, as well as the Blockchain hype, is not engineer-driven companies like Google, but rather MBA-driven buzzword-friendly tech companies (imagine Balmer-era Microsoft), non-tech companies who want to share the cake, the media and finally the investors who are misled by the rest, but end up creating a capital-based feedback loop for them. As far as the people driving the hype train right now are concerned, Machine Learning is the way you do AI, and Deep Learning is just a more powerful (ahem deeper) version of Machine Learning. This is what AlphaGo used to defeat Lee Sedol, so it's obviously superior, and we should use it to process all data, in the same way we should strive to store everything on a blockchain, which is clearly superior to hash tables and databases.