They probably don’t have the tech expertise (this in my mind is...

They probably don’t have the tech expertise (this in my mind is becoming the most obvious reason and I’m not surprised because even ore continues to struggle) despite Gxy having a combined 200 years experience of its SA personnel. And even if they believe they can do it, they’re probably not confident enough. Hence they’re looking for a much less risky path, in the words of Air Supply, ‘through the years.’ (Through the years, you never let me down (not), You turn my life around (upside down).