Originally Posted by
ermen
Think T4 had been designed as a small, pseudo budget LCC-esque terminal. but that probably wouldn't have made so much money and would have been a waste of prime real estate, hence they try to upscale it slightly.
I think it's probably quite clear that is the issue - it was intended to be a replacement for the budget terminal that used to stand in its place...
... I guess until the operators they had in mind for it did not want to move from where they were after they had been shifted back to the main terminals for a couple of years. I'm not sure how the slightly eclectic mix of airlines operating out of T4 came about though - I guess they must have been offered very good incentives.
the above is purely my conjecture, and not fact