The only label that I would like to see is that slaughter was in line with EU legislation, not as the result of a dispensation. This would encompass all meat other than the approx. 20% halal that is not pre stunned prior to slaughter. At the end of the day dead is dead. Both religious and secular slaughter is supposed to be humane. The EU legislation has clearly been framed from the perspective that pre stunning is more humane.

I have no problem eating meat, but as I eat it I want to be satisfied it was not tortured prior to slaughter. Legislation concerning livestock controls every aspect of the animal's life from birth to death, with welfare being the main driver.
As I have previously outlined good stockmanship generates the greater profit. Poor shelter, poor feed, poor welfare, poor transportation impacts profit. Unlike certain donkey homes, farms are run as profit centers, not charities. Those fluffy lambs that get caught up in gorse or brambles cost money to dispose of, instead of making money when they reach killweight. There is sufficient risk in livestock farming, especially upland sheep, without adding cruelty to the equation.