No, but there is levels to that and asside from a few outliers, Oda has been done still a respectable job so for a tong time imo, but now with how age and health issues have catched up to him and him wanting to wrap up things quickly (relative sparking), he isn't as reliable anymore...
Remember when back in water seven, Strawhats seemingly stood no chance against the CP9 only for a couple of chapters later to be capable of somewhat providing a challenge, even without their new power ups?
You know how Oda explained that?
"Hesistating makes us weak"
Which makes totally sense in a world where strength revolves more around willpower than anything and then he still provided them with Power ups, which he either outright teased at the sea train or revealed later down the line.
But against Imu, Hajrudin, a massive and slow giant without any ability to help him covering the ground quick enough, just manages to get there in time, the exact moment the plot required it to interfere and then a few panels later, Hajrudin Just endures 3 Omen bullets with is back turned and then pulls a Hakoku together with his brother, when at Dressrosa a simple G2 Pistol was enough to knock him Out, even just a few chapter before, a one of Imu's Omen explosions knocked him down.
Even with the Statement about the grandfleet growing stronger in mind, this feels like Oda needed to get from point a to b, without knowing to get there logically, or he simple screwed it in favor of his forced narrative.
Like Luffy had train his ass of for 2 years and ended up as top YC Material, but Hajrudin does a few push ups for what? 2 months since Dressrosa?, pulls a Freezer and performs better than even Zoro?