I also agree with you sir as this announcement will make the people learn more about the blockchain technology.
I am not sure any smart phone user will learn about the blockchain technology because they provide an inbuilt wallet, but people will be aware of the market and sure it is a good sign for the entire crypto market and once they announced what all wallets are included which involves a lesser known coin Enjin Coin had a huge rally after the announcement.
In a thread it was questioned whether you'll be going with hi-tech smartphone or bitcoin. Looking at the inbuilt feature of the latest S10 more people, particularly the cryptocurrency users will go buying the high technology smart phone selling bitcoins to experiment the worth of the innovation from Samsung.
Since it is a high end mobile, they are targeting the crypto users and it is a good thing to see a multinational company understanding the market opportunity and trying to take advantage of the situation which is a win win situation for everyone.