Zoro undeniably got his shine this chapter, with more to come probably in the next 1-2 chapters.
I don’t think it was worth the shortchanging.
Alabasta demonstrated Zoro’s disciplined mindset. Whatever Oda had planned with Breath of All Things - I don’t buy that same Zoro, who also studied under Mihawk and flourished even more in Wano, wouldn’t know he was a Conqueror.
Especially a master swordsman who is finely in tune with his body and senses.
tldr: Zoro deserved a proper journey with Conqueror’s Haki. Audiences would’ve been more than patient for it.
I personally can’t fathom why Oda denies Zoro the process he’s given to Luffy and Sanji.