Did not read the article, looks like someone is writing to boost the rise. As of this writing BTC is about $18.6k. It was hovering around $19.5k this past weekend.
I don't see why Bloomberg journalists (or the corporation responsible for selling terminals, software, datafeeds and such) would care one way or another about the rise. Or drop.
Call me skeptical about the alleged claims about Bloomberg's motives.
Also the article doesn't contain mind-blowing information, it's just pointing out that shorting isn't happening yet.
It's also possible that the writers are invested in Bitcoin themselves.