No, because the rules forbid betting on any Serie A games.
The article is wrong in the sense that it won't save him from at least a suspension because of this. But if Tonali bets on his team to lose, he could likely be facing much stronger and probably even criminal prosecution.
EDIT: also, to add, it's likely that betting on any Serie A games is forbidden, because it would invite players to make deals among themselves. You could bet on your own team to win with impunity and then share the spoils with someone on the other team. Or at the very least it could look like that to the outside public.