I wonder if this is enough to overcome the bubble talk. I mean, BTC or ETH could easily go the way of myspace or geocities, but surely blockchain is becoming more legitimate.
I think blockchain is valuable and here to stay. The value of various blockchain manifestations will likely be far more ephemeral. The more secure long play is to invest in firms that are developing and selling blockchain applications to various sectors (like IBM and Overstock).
The crypto plays are far riskier and more like gambling. So far, it has been a craze that has inflated the value of all of the players, but as the market gets more saturated, it also destroys the underlying investment premise. Some coins have a better "story" than others but I'm not sure any of them are that well positioned. Bitcoin is the most professional of them and now that it has a management organization, perhaps they can be nimble enough to evolve as blockchain-crypto evolves and not be put out by a new advancement.