No, Dragon/Electric is better then Dragon/Fire in Ubers. 100% accurate STAB thunders with all the Kyogres everywhere is better then a Fire Blast which will only be used to hit steel types (and if it's raining then there goes that super effective boost). I'd rather have super effective STAB coverage over Kyogre and the bulky flying types then a situational Fire STAB, and it still hits steels for neutral. But the bigger factor is the stealth rock weakness, that just sucks.