Although it sounds a lot, when you look at the numbers, lets be generous and say 1,000 cadets per year paying €30,000 each with .€15,000 gross profit, so €15,000,000.00 income then, which is pretty good.
Except, according to the current accounts, year ended 31 March 2021 Scheduled Revenue (Scheduled revenues comprise the invoiced value of airline and other services) was €1,036,000,000.00, there is a bit of difference, I am sure they are happy to make a profit on training, but it is less than 1/69th of revenue, so not as important as you may think.
If you are interested until 31 March 2020, the Scheduled Revenue was €5,556,200,000.00, which equates to 1/370th.