thisActually no Rock type currently breaks the mold by having high special attack coupled with high speed. The only one coming close is Omastar who arguably is a water based special sweeper rather than a rock special sweeper. Meanwhile Omastar is still painfully slow.
Electric on the other hand has a Zapdos who can be used as a special wall of sorts, Ampharos who apparently is physically bulky, Jolteon with high special attack, and Electivire with pretty high physical attack. If anything Electric has more Pokemon that break the mold than rock.
Rock has always been full of slow, physical pokemon. Electric's stereotype was speed, but we have things like Lanturn, Luxray, Ampharos, ect. that are not really fast. There are a lot more electric pokemon breaking molds than there are rocks. The only rock pokemon who breaks 100 speed is Aerodactyl, and the only rock pokemon who breaks 100 sp. atk is Omastar. Rock is much more stereotyped than electric.