What is the reason for doing this? Do they intentionally do this so that even they can invest in Bitcoin and make some profit?
That is because they wanted the cryptocurrency to die by having no users at all. They are making these propaganda so that those people that once believed that Bitcoin can make a change in their economic status will go back to the physical currency. And will eventually benefit the government.
Therefore the media is being controlled by the government, to force the broadcasting or making news that cryptocurrency is a crap.