The answer is ‘yes’ to questions 1 & 2
The answer is ‘it never did’ to question 3
When it comes to RAF pilots they are overwhelming white. So, the main criteria to become a pilot is to be white. Your ethnicity is the starting point for being a pilot. Your ability is a secondary consideration.
In times of crisis the ethnicity rule will be relaxed, ie ability and willingness becomes more important.
The idea no one cares about ethnicity, race or gender and that ability is the most important criteria is absolute bollocks and always has been.