There is also the removal of the hated 'regional' supplement (which applied even when the flight was direct and shorter than flying from London!) and the ability to fly one-ways and not to have to originate in the UK.
Overall, AirMiles members come out by far the worst from this unification. The mileage rates were drastically increased in the last upheaval some years ago in order to include taxes and fees. Now they are re-introducing taxes and fees while keeping the mileage redemption rates broadly the same. No such increases have been made in the BA Executive Club scheme. Rather, over in that thread BAEC members are rubbing their hands in glee.
This is a further significant value dilution of the AirMiles scheme. I can understand the desire for simplification across three different schemes but Airmiles members have lost out unfairly here. They should have been given a conversion ratio of somewhere around 12 to 15 to 1 instead of 10 to 1 in order to maintain value.