Because not everyone likes change
and not everyone invests their money into something more valid. They also like easy money and obtain everything instantly. Whereas, there is no instant success. Even if they seek further information, they know the truth. Rather than paying attention on mainstream news where critics are paid for it.
In most cases those who doesn't like any changes are the one who are not embracing it, at this point bitcoin those who are against this digital currency are making a huge steps trying to make this assets non valuable, the critics and the mainstream media's are avoiding good publications where interest can be gained from those who are seeking opportunities, they will do everything not to have that support in any ways that they can.