Pretty sure he's talking current nicknames, in which bomber planes weren't around in the 1870s. It's an obscure fact but he's not wrong.I would say probably incorrect, most teams have had other nicknames, or are you saying the idea of a bomber plane didn't exist?
If i recall their original nickname was the Same Olds (?) and they didn't select the Bombers moniker until WW2.
EDIT: Hold on. Power... Was there the traditional use of electricity in 1870?