I've been reading Bloomberg news since it was on my terminal. I never noticed this.
There has always a steady chatter of red flags and growth sectors. That's its job. During the recession, it was about the recession. After the recession, it was about threats to "green shoots." At each business-cycle record, it was about what could tank the economy next.
(I've actually thought that Bloomberg's coverage has been bullish over the past year. While the FT was calling out a looming recession, Bloomberg focussed on American equities outperforming.)
I have only been reading / watching CNBC financial for the past few years and I was surprised at their balanced view. Since CNBC is constantly bashed ( may be based on politics or whatever reason Obama used to joke about ) I completely dismissed them for a very long time.
Somewhere along the line Bloomberg turns into more like a Buzzfeed like platform for Financial news.
The only positive thing I can say about that sort of bias and propaganda, is at least it's formally out in the open.