About time. Was pretty silly when it's only advantage was it's greater range.
While I agree that you pay for the greater range of the A350, I would say that in general, the A350 in AWS does not take into account that it seats one more passenger across in economy, which is the main reason the real life A350 has a greater capacity than the 787.
Still, the AWS A350 has viable fuel economy, at least the -900 and -1000s. The only problem is their prices, and with that especially the leasing rates which make it a problematic choice. If they are owned, they are great.