"For an explanation of part of the reason why Emirates chose GLA rather than EDI"
Interesting statement.
What's the other part(s) then?
I'm sure Emirates will have had a number of reasons for choosing GLA and NCL rather than EDI and I wouldn't like to claim that the PCNs at EDI are the only reason but they would appear to be quite an important one. The others will include the shortage of large stands, poor international arrivals facilities and many other factors connected with the infrastructure. I don't to have access to Emirates' market research so there may be other reasons.