It's not a problem that it's impossible to win or draw for a home team like Empoli, but with Napoli's current condition there is very little chance for Empoli to win or draw at home. Because Napoli are still very strong and often don't have any problems with their players at the moment, it has made it very difficult for the teams in Serie A this season to chase and fight Napoli in every match. So only the chances of winning and drawing are very small for the home team, not because it's impossible.
Napoli's match against Empoli is unlikely to end in a draw because, so far, Napoli has shown in every match that they can always win.
So when they meet Empoli in the upcoming match on February 26, it will be easy for Napoli to win. They are unlikely to give Empoli the chance to score.