Coronel, Cradock, and the missing Canopus

Was Cradock's decision to fight at Coronel tactically indefensible?

The engagement was tactically unfavourable, but Cradock had little room to escape; Canopus might have altered the German response and the force balance.

The tactical disadvantage at Coronel was separate from Cradock's ability to avoid the battle. Once contact developed, he lacked a straightforward means of escaping the faster and stronger German force. HMS Canopus would have complicated the German decision because even an old battleship carried guns and protection that could not be ignored. Her presence might have deterred an immediate engagement or forced the Germans to keep their distance. The wider counterfactual asks whether a Royal Navy with more modern dreadnoughts could have released additional pre-dreadnoughts for distant stations. Strategic force allocation created the limited tactical choices available to Cradock on the spot.