Thanks for this interesting article Jeff.
There are couple of questionable issues.
First of all the author's assertion that the distant galaxies being out of sight is "similiar to watching a friend cross a black holes event horizon" is wrong. The friend would be observed to be trapped on the event hoizon of a black hole. This is an example of gravitational red shift, not Doppler red shift which is the basis for the article.
Secondly "Within a finite time, the accelerated expansion of space moves any distant galaxy away from us that exceeds even that of light" is frankly misleading as it implies the galaxy itself is travelling faster than light.
Cosmologists use a comoving or expanding coordinate system in which each galaxy in the universe is in a fixed postion despite the universe expanding.
If the velocity of a distant galaxy in a comoving coordinate system is calculated, then yes, it can exceed the speed of light.
Basic physics and Special Relativity define velocity in a local coordinate system with a fixed origin and axes. When the comoving coordinate system
is converted to a local coordinate system
no galaxy travels faster than light.
Do galaxies actually "freeze"? I wonder.
Regards
Steven