Hi phill84,
It may be related to the new terminal in Narita airport. They opened T3 in Narita on early April, it is dedicated to LCC. It is wholly coughpy terminal where express train and bus services terminate at T2 and you need to make yourself move from T2 to T3 on foot or 30 minutes journey shuttle bus service. All LCC travellers are racing between T2 and T3 with their baggages in 36 celsius sticky summer, there is no automated concorse, no airconditioned until you successfully reach to terminals.
Apparently Narita airport has been losing majour normal carrier services since Haneda airport commenced their operation, Narita is trying to survive with LCC...In stead of airline lounges, there is a massive food court in T3. It is depressing view to see millions of people are queing everywhere, food court, shops and check-in counter.