The IRS has gotten it all wrong. All their statement will do is push onshore people to offshore services and companies where they cannot be taxed. I live and work in an offshore country where there are no capital gains taxes and cryptos aren't taxed in any shape or form. I'm already seeing a rise in what can best be described as "offshore crypto farms" where instead of you mining and manufacturing your own cryptos, you simply rent mining capacity or buy them cheaply. Either method means that you haven't technically manufactured them yourselves, rather you're buying a pre-manufactured product, which is tax exempt on purchase. Added to this, if the contract is written well, then the cryptos could be held in offshore "trust" wallets and only withdrawn as and when needed, thus obviating any reporting of them. You've simply paid for a service/product combination and the very existence of the mined cryptos isn't a taxable event. You could almost create a futures and options market that way, but that's another story...
Since the USA has introduced FATCA that is seeing US citizens and residents caught in a wider reporting/taxation net, the simple separation of an asset you own and enjoy overseas versus a product and service that you've bought and paid for could see cryptos becoming the "flee" asset of choice.
The upside of the statement is that the USA government has effectively rubber-stamped cryptos as viable and recognisable assets, hence they have a real value. Nothing like stimulating the very economy you're opposed to!