Absolutely not, Look at the post properly, I said instead of 108 Economy seats there is only 72 Available, check the seat map yourself and you will see the back rows are all Greyed out.
I'm getting lost now - so it has the same number of Premium seats, but they are selling fewer economy seats? So they aren't increasing the number of Premium seats, but it becomes 'premium heavy' by selling fewer economy seats?
Isn't that more likely to do with range concerns due to stronger winter Westerlies??