It seems they don’t really care about this match. Many teams prioritize European competitions and league matches ahead of the league cups or any local competitions they’re participating in. This happens in other leagues too, small teams often win more in this competitions and make it far. They get eliminated at some point by big teams that are focused on winning that cup if they’re not participating in other competitions and don’t see themselves as a contender for the league title. It was really a shock that Napoli was beating by four goals to none, but it is not as surprising as people think it is still.
Sometimes focusing on competitions and matches only in the European League will not provide good value because maybe you won't know that the small teams around you have several players who have great potential, so the big teams will likely comb out really quality players to get into their big teams. so that in this way small teams have the hope of getting into the big teams and may even be able to get players at low prices, but the quality of play on the field can be relied on so that in this way there is no discrimination against small teams.