As much as I whined about it before, I guess Oda having Base Luffy get feats against Kaido and Imu is him telling us that Base Luffy is not far off from Gear 4/5.
This is where I'm at, I guess: Base Luffy = 50% power, Gear 4 = 75% power, Gear 5 = 100%. This is only in terms of speed/power/endurance, Gear 5's reality warping powers are another rabbit hole entirely.
My question is: does Luffy just... always use Gear 2 in serious fights, now? Like how he can use Gear 3 without drawbacks? Or does he only use Gear 2 when using certain moves?
But, yeah. As much as it annoys me to see Zoro and Sanji get portrayed like this compared to Base Luffy, there is historical precedent for it.
Garp. No Fruit, doesn't need it.
Garp would whallop Zoro and Sanji currently, so, I guess the answer really is that CoC Haki breaks the universe and makes EOS fights that boring if someone doesn't have it.
He said it, we didn't listen.