I doubt that a break will be able to change anything for the player, a break is only needed to avoid making rash hasty decisions, and this will give him the opportunity to calm down and return later without emotions. This is the only reason to take a break after unsuccessful series. As for big wins, I would also advise not to continue playing on this day, because mistakes can also be made on positive emotions, it is better to place bets in a calm state.
You said you doubt it but you explained the reason to take a break. It looks like you disagree but you describe the way to agree with that. 
Dude, take a break is very important when you already played gambling too often. If you play too often, it can make you be addicted. You also can spend too much money, and you probably get emotion when you got many losses. If you take a break, you can evaluate your way in gambling. You also can calm you mind.