It didn't make the cut? It certainly should have. I vacillate between Doggy-coin, and using a long O, something like DOE-gee-coin (as in "Get along, little doggies", which is sometimes sung with a long O). The use of Doje-coin always seemed silly. The mascot is a friggin dog, not a doje or a dozh, whatever those nonsense words mean. Stick with Doggy-coin, it make the most sense.
I'm not sure why Doggy-coin didn't make the cut. That's honestly how I thought it was pronounced.