Not at all, Oda just didnt explore Kaidou's fighting tech more imo. Imagine if Kaidou goes hybrid and release tornadoes (just like how he create tornadoes in dragon form), topple the enemies' balance and fly them around using the tornadoes, then proceed to instantly hit them using kanabo while they're being helpless in the air. Thats an example of extremely versatile his technique combination can actually be.
Or imagine if hybrid Kaidou chokeslam his enemies and then blast them point blank with his lightning powers, its gonna be so lit.
...as long as Oda doesnt always nerf his elemental abilities that is, which is not the case since elemental attacks are always nerfed.