It provides a bigger picture because the current situation is not representative at all. Admittedly everybody who cares about Bitcoin is aware of that but it may still be a valuable information for the random reader without much Bitcoin background.
Perhaps you don't understand the meaning of the phrase "on this news."
Perhaps you do understand, but it makes you feel good to say something nasty about bitcoin. And that feeling is more important to you than honest discussion.
The given context was "on this news," explicitly referring to the single period of time since this information was made public. In that time and that time alone, bitcoin has come up a few dollars.
Nobody is denying the fact that bitcoin is still down from last week - or even last month, but the context in question is the past 4ish hours.
Context would be good if it were done without any kind of emotional undertones (which are often used to win arguments through emotional intimidation) or any kind of logical leaps (which are often used to squeeze in emotional understones).
So e.g. "It's worth keeping in mind, though, that bitcoin is down X% in the last month."
For values of "rocketing" approaching "down 6% on the week, 13% on the month"