Elegran all counties set their own pay scales since Gove axed collective pay bargaining in 2010, so what you are reading is just about Cumbria.
"Cumbria County Council said it was sympathetic to those facing big pay cuts and was involved in a number of appeals.
It also said the new pay structure would be fairer, with some staff better off under a single-status pay scheme.
But it admitted the change could mean some of the county's 3,500 teaching assistants being worse off."
This was in 2011, and came into force in April 2012. So TAs in Cumbria had already had pay cuts, and are now having their pay cut again.
The reason that lots of teaching assistants are needed is because special schools have been closed, so children that used to be in them are now in mainstream schools, in ordinary classes, yet needing individual attention, which teachers cannot supply as well as teaching the other 30+ kids.
Teaching assistants do tend to be highly qualified, but on half the pay that teachers get. They also do work out of hours, but not as much as teachers.
Councils see them as a way of reducing the pay bill, and who can blame them in these cash strapped times?