LGS6753
You are spot on !
From a Southern Hemisphere position ( where i currently am) STN will never be regarded as a serious alternative to LHR or LGW until BA or any real established international carrier start regular flights or have a base there.
Doesnt look like that will happen sometime soon.
BA had serious conviction for STN from day one didnt they-started up Go(to take out Easy , which backfired fortunately),that was it.
Maybe somebody should ask WW for his views on STN development