The answer to 'surge protection gets hot' is that a surge protector getting hot is often a sign of a problem. This can indicate that the surge protector is failing and is no longer providing effective protection for your electrical equipment.
Some common causes of a surge protector overheating include a high-voltage surge, a faulty component inside the surge protector, or the surge protector being overloaded with too many devices. If your surge protector is getting hot, it's best to unplug it immediately and replace it, as continued use could lead to a fire hazard.