Olympic oops

I'm on my way to graduation (which was awesome, congrats to all our grads!) and this comes on the radio.  I'll cut to the end for you and give you the fun bit:

"SIEGEL: This well-choreographed business took less than a minute and would have made Vulcan, the god of fire, proud.

CORNISH: Don't you mean Hephaestus?

SIEGEL: His Greek name, you mean?

CORNISH: Yes. You'd expect to refer to the Greek gods since we're talking about the Olympics, right? Which brings us the final flub in our list. The Royal Mint has issued commemorative gold coins for the London games, coins embossed with the names of Jupiter, Mars, Minerva.

SIEGEL: And those would be the Roman names of the Greek gods Zeus, Ares and Athena.

CORNISH: When pressed, The Royal Mint justified the use of the Roman names because the Olympic motto is in Latin.

SIEGEL: Citius, altius, fortius: swifter, higher, stronger. All of these Olympic gaffes make us wonder if the motto for the lead up to the London games really ought to be this...

CORNISH: Errare humanum est: To err is human."

All I get from this is that the Roman names take the gold medal (coin, whatever).  ;)