Feel like a dog with a bone.... don't want to let go of this one, as I think I realize what is happening.
Basically and over simplified, the government is printing money, and buying its' own debt. Hard to understand, but it's like building a house on a sea of mud, and it is illegal. Here's a Federal Reserve article that explains why it is illegal, and cannot be done.
https://www.federalreserve.gov/faqs/money_12853.htm
... and yet that is exactly what is happening.
Our economy, and national debt is based on trust... whether by banks, citizens, or other countries. Trust that the country can and will pay its' debt, so that trading in US securities is and has been considered "safe".
Lets look at a very simple example. I invested in IBonds in the early $2000's. The 30 year pay out rate averaged out to about 4+ percent, and I can cash a bond with the accumulated interest today, at that promised rate.
The government promised that. Since those days, the IBond rates have been close to zero.... which at that is not the worst thing, as the rates will never go below zero. Trust in the government.... The bonds have a "guaranteed" value. Basis for the noise about negative interest rate. ( A perceived value that establishes a value to be higher than the eventual lower value of the asset.
Currently, government bonds a bought by banks and trusting investors because they pay at an auction, negotiated rate. Those bonds can be bought and sold at the perceived safety interest rate.
When the treasury prints money, and sells it to itself without bidding, it is creating government money which pays for whatever congress decides. In effect creating assets out of thin air, with promise to pay back with full faith and trust. When this is discovered, the US debt declines in value, and creates recession,depression, distrust, high cost of borrowing rates, and undermines the value of the U.S. dollar.
What you see being discussed about reducing, increasing or maintaining the Fed Reserve rates... is meaningful in an honest market. The position of the article cited in the OP, is that the Fed is breaking its' own rules.
When the value of Government bonds goes down, Banks lose trust, and this is what happened in 2008, with the bank bailout.
Maybe not what an economist would say, but it's my reading of what is happening. A dangerous path to go down.
OK to let the thread die. I've got the problem out of my system... Just a matter of interest as it doesn't affect me.