What is often not mentioned in articles like this is another important fact. When bond yields fall bond funds realize capital appreciation since the bonds they bought yesterday have a higher "value" (price+coupon) than the one's they could buy today.
Capital appreciation of older issue bonds in a falling yield environment is a bond holders "alpha". If bonds are held to maturity they sell at face value...the bond holder collected their original investment plus the coupon...no harm no foul.
Many have worried themselves out of bond positions. Bonds are less important for income these days and more important to help an overall portfolio cushion against equity markets periodically faltering. When this happens investors look for a "flight to safety", they buy bonds forcing yields to fall and as a result yesterday's bonds appreciate... the bond's value goes up.
This bond appreciation provides a cushioning effect on their equity allocation and might even serve as the "dry powder" to reallocate back into equities when stocks reverse significantly.
A stock dividend will only protect a stock's value equal to it's dividend. In a stock correction, a bond's value will often times appreciate.
Dollar Cost Averaging into bonds when the stock market is moving higher by using proceeds from periodic stock profits is one way of buying bonds when they are out of favor.
How did your bond do during this last "hiccup"? Over the past month as treasury yields have lowered; the etf, EDV (long duration treasuries), has appreciated in value over 4%, while VTI (total stock market) sold off by a little over 2%.

YTD, EDV is up 22% verses VTI gain of 4%. The 22% gain in EDV is the cushion for the overall portfolio or possible the "dry powder" that an investor could reallocate if they thought stocks were a "buy" right now.

It's my feeeling LT treasury funds like EDV have a portfolio cushioning effect on stock market risk. Because of their longer duration they possess an amplification effect verses shorter duration bonds. If you are trying to protect against interest rates rising for your cash position, buy shorter duration bonds. If you are trying to cushion periodic stock market downturns (equity risk) hold longer duration bonds.
I see a place for both in a well diversified (risk adjusted) portfolio.