Forget quality over quantity, no km is ever junk...
Is this really a surprise? It shouldn't be. World-class distance swimmers probably swim in the region of 50-80k per week, with 10-20%...
I believe that an athletes ability is only limited by themselves. So as a coach, I care about all my athletes and help to make them mentally strong and determined to try and to be the best version of themselves in all areas of their life