People say this every year - "this will be a big year for blockchain", "adoption is coming", but the actual stats show that majority of the companies don't want blockchain, and majority of the developers are very skeptical about it. These big companies that you mentioned can afford to blow some money on hyped things like blockchain because it may boost their stock or raise their publicity, so the fact that they talk about blockchain doesn't mean much to me.
I agree with you. All that we now see is crafts, tests and tests. Large companies are more likely to try to win in the popularity race due to the cryptocurrency trend.
Some of them have extremely small units associated with the blockchain, just in case.