Loma got a few questionable decisions in the amateurs...some of his "wins" would definitely be losses if scored on pro style rules.
People that bring up these fake, padded ass amateur records show that they don't anything about amateur boxing or how records are kept in the am's.
The only fights and records in the amateurs that you need to pay attention to are the ones recorded in regional/national/international tournaments and the olympics.
Especially when they use it when it's convenient for them. Andre Ward ain't lost since he was a teenage boy, amateur and pros, but somehow that don't move the needle for the Atlas' and Tessitore's of the world. Lomachenko amateur record somehow adds credence to his stake as P4P tho.