Sorry. I find that very hard to believe. Do you really think BA would deliberately hire less experienced pilots? New joiners all get paid the same regardless of previous experience.
Sounds like nothing more than a straw poll argument to me. There are plenty of very experienced new joiners, as there are plenty of relatively less experienced new joiners. My opinion is that if you fit the mould you get in. Simple as that. Combined of course with needing a healthy slice of luck!
It's like the age old argument in football. If the junior players are stronger than the more experienced ones, they should get picked based on that, not their lack of reputation. The more experienced players should have to earn their spot regardless of experience.