Probably true crypto believers will abandoned BTC soon if not even sooner:
The (proposed) regulation does not mention Bitcoin or BTC by name. It uses the term "Virtual Currency". So if a "true crypto believer" abandons BTC, the next crypto will still be covered by this regulation.
Also, the (proposed) regulation specifically says that miners (as well as merchants, mentioned earlier) are not required to obtain a license.
I really don't see how this has any negative.