The first ever use of DOGE for a dog wasn't used about Kabosu, but a Corgi. In the reddit thread linked below you dont ever see any mention of a Shiba Inu and the thread owners(John Monarch) explanation doesnt hold up at all.

COMMUNITY TAKE OVER ! CTO OF $CORGI BUY $CORGI HOLD $CORGI BE HAPPY WITH $CORGI BE LUCKY WITH $CORGI STAY RICH WITH $CORGI