First of all, it does not have a lower rate of fire, 698 is normal for a 143dmg weapon. Second of all, it DID receive the moving accuracy penalty, it's 0.4 now according to in-game stats. And of course all the other nerfs too(hipfire, reload as stated) So which one is it SOE?
It's entirely possible that the nerf to the SVA-88's accuracy had more to do with how accurate it was for a weapon with its rate of fire. Pre patch, the SVA-88 was best or second best at basically everything.