Power-wise, it makes no sense i agree with that, but then again i also think it makes no sense for Law to directly jump into the Kaido battle when he was getting destroyed by Doffy, with Luffy also needing 3 fights at that level or higher to be a proper challenge to Kaido, but then again Law has hax, so in the end, it might depend on plot
And plotwise, i think the Onigashima attack will fail with the arc ending in a month instead of 2weeks. And if my prediction turns out to be right, with the Onigashima raid failing, the mid battle Zoro would get at that point could be used as a plot progression allowing a future potential partake in the Kaido battle(if it were to happen) to make more sense
In terms of build-up, Zoro so far had a build-up against Orochi in trying to avenge Yasu, maybe leading to him facing Kyoshiro again(if he isn't an ally). Historically though, it'd make more sense if Zoro faced King due to him usually facing the second strongest opponent in an arc.
On the other hand, Oda decided to give the only sword with the hype to scar Kaido to Zoro
With the magazine also hyping the possibility of the dragon cutting legend being revived
So it's definitely a possibility that Zoro might play a part in the Kaido battle. Luffy will still be the one defeating him anyway since it's something Oda himself hyped long before Wano, when thinking of ways Luffy could beat him