Apoo tanking Zoro's attack just shows how strong he is. I can see that Oda is going with the narrative that all the supernovas are strong and there is no significant gap between them.
If you think about it, Apoo is clearly on Kidd's level. They have been shown as rivals since the timeskip. Kidd fought him in several occasions and we havent seen Kidd defeating Apoo yet. His endurance is pretty amazing, he has a hax devil fruit.
The only supernovas who were hyped and overestimated by the fandom are the auction house trio due to their bounties and panel time. Its not the readers' fault. Oda also hyped them along with Drake and Hawkins =>
Brownbeard, "Whenever there is a big incident, theres pirates of this generation involved...........Blackbeard, Kidd, Law, Drake, Hawkins"
Shakki, "Kidd, Luffy, Hawkins, Drake, Law, you must have heard these names in the news"
Their badass designs also fuelled this overestimation.
I think Oda realized his mistake and took every opportunity since then to hype other supernovas. Uruge was able to beat a sweet commander. Capone planned to assassinate a yonko! Now we can see how strong Apoo is. Great writing from Oda, this would fit the narrative that the worst generation & the strawhats were able to bring down the Rocks.