I struggle with that man’s videos devo so I won’t watch
I believe losses by fanciers is down to a few things
Buying pedigree without winners in there last 2 generations so shit breeding shit
Mixed ages together so some being stopped from roaming and others just followers and not learning
Very early breds left and not trained and probably not in a real good system from early in life
Health ,pigeons trained when not in good health
I bred 45 last year after 4 races had 36 all natural in two sections one for each age
I have a club mate who noticed this last year he weaned 20 may hatched he still has 16 well trained daily now he has there first race this week so that will be interesting