Why did Paul Ventimiglia leave BattleBots?

Could you elaborate on the reasons behind Paul Ventimiglia's departure from BattleBots? Was it a personal decision or did circumstances outside of his control play a role? Did he express any dissatisfaction with the show or the competitive environment? Alternatively, did he feel that he had achieved all that he could within the BattleBots arena and was seeking new challenges? It would be interesting to understand the motivations and factors that led to his exit from the popular robotic combat series.