Except for Luffy's MC factor who reached kilometrical heights this arc, I don't see Kidd writing as bad or something...
The only thing I complain about is how the Kaido-Linlin switch happened, I understand that they had to think quickly but that was rushed.
As for the panel time, Kidd's will be the second last battle showcased in detail so it makes sense that the best is coming later. I also expect next chapter to have a focus on Kidd-Law vs Linlin similar to the one Luffy-Yamato-Momo vs Kaido had this chapter.
In a nutshell, I think it's not about bad writing but about people feeling the urge to belittle Kidd, no matter what he's doing (fighting Top Tiers no stop, for example...)
The problem here is that you have a vision that wishes Kid to beat Big Mom.
But if we consider that he does not have the same treatment as Luffy by Oda, it is a fact. He could have given her at least one advanced haki but he didn't. He could have made sure Kid at least beat the Commander.
If so many people have a problem with Kid it's because Oda doesn't really put him on Luffy's level and you have to accept that to understand what people are saying without saying all the time that he is. . minimized. It's not ignorance, it's the facts.
Why do you think a lot of people don't believe in Kid anymore? Because there is something extraordinary about him that people hope to compete with Luffy. But it's not. Oda has put parallels in place yes it is true. But by the way what is it honestly that did and you say "amazing he did that"? As much as I find Zoro fans exhausting at times so so far, Zoro has totally outdone Kid on the Roof. I'm not inventing anything at all. Moreover, proof that Oda does not meet him as much in advance as everyone, since the fight is eclipsed. Besides, Big Mom still seems to laugh a lot every time we see her even though I think she had an injury but nothing serious. If you think too much about Kid, you may be disappointed.
Luffy still said 4 or 5 times that he would beat Big Mom anyway we can't deny that detail. There is no denying that he told Katakuri he was going to beat Big Mom. Erbaf has a good chance of being the scene of Big Mom's downfall.