It means more UV radiation. The Hubble telescope for example doesn't run its UV sensors while passing through the anomaly to keep them from getting damaged.
"Earth's magnetic field is vital to life on our planet. It is a complex and dynamic force that protects us from cosmic radiation and charged particles from the sun." (From the article, link to NASA info below)
The anomaly brings the Van Allen Belt closer, weakening the ozone layer in the mesosphere. (On second thought the Hubble probably disables the sensor because of charged particles)
It doesn’t matter much to us down here because most UV is blocked in the stratosphere.
I wish these articles would go all the way showing a decent visualization of the increase.
I remember something like a KML overlay that would display magnetic data on Google Earth, but it was kind of obsolete and didn't had any historical data that could be used to observe change.
I wonder if it relates to this.