It's pretty hard to predict anything when talking about the Premier League because of the liabilities the teams and the players have when playing in the Champions League and the other cups, too.
The quote highlights the complex nature of football predictions in the Premier League. The involvement of teams and players in multiple competitions creates unpredictable factors—such as injuries, fatigue, and strategic prioritization—that influence outcomes. This interconnectedness means that even expert forecasts face significant uncertainty, emphasizing the dynamic and intertwined aspects of club football at the highest level.