momo95,
If you read the website you'll find the starting salary to be £22k+flight pay of around 12k, which is favourably taxed. The base salary increases every year for the first 6 years by roughly 5k to join the DEP pay scale. However, where you're most likely missing the point, is that the 84k for training is repaid by BA on top of all this.
It'd be useful to know the facts prior to commenting in a public place.