SLF3
In a Repeat business model, there is little satisfaction born out of seat spacing and BA has researched this fact. Prior to 9/11, American Airlines in an effort to boast it's customer satisfaction did something similar except it was same seat spacing through. It didn't take AA that long to make a U-turn.
Some Low cost models like SouthWest et la have thrived on just a simple basic of the basics principle in the aviation business; delivering the customer with their baggage on time consistently.
BA was the world's premium airline because it consistently did what I've described above. I'm sure it can still deliver on that promise after organising her fleet & labour contracts.