Loma got beat by the younger man in Lopez, 90% of the time this happens to all boxers who stay in the game.
No amount of sparring in the world can replicate being in the heat of combat. So these counter measures help, but are in no way a suitable replacement for an actual fight (even a tune-up against a no hoper).
then dont take the fight, if you believe ring rust is insurmountable. surely if you understand that, a professional who devotes his life to such knowledge will have it tattooed on his heart. if you do take the fight, then you understand its not gonna determine the fight, if you take it and lose, then you obviously arent as good as you think you are, or you dont understand how it all fit together. whatever the case, loma was wrong and teo was correct.
Irrelevantt to the discussion at hand, which is ring rust being a possible factor for Lomachenko's performance as also acknowledged by Fimo.
underestimation is also possible, and much more probable, to be wasting time excusing loma for something he should understand as a career professional and prepare for, so that his fans dont have to find ways to excuse his subpar performance. ray shook off 3 years of rust to beat the best middle, and he also did it being the smaller man.