Why would it be trolling?
Akou despite his back injury was still strong enough to take out Gakushou's eye, break through Shibashou's insanely hyped elites, make Ousen believe that his arrival was a big gamechanger and block another strike from Gakushou that chased him. Even after the line about it being "his end" he was still cuting down Seika soldiers left and right.
Despite all this Shibashou was still able to kill him with one attack. Don't you think that oneshoting a guy who is a big problem for Gakushou is at least a feat worth mentioning?
See bro, I don't really count the Gakushou moment as anything but non-sensical plot moment, that never should've happened. But even if we count that, since that weird moment, he fought through the army all while his body was getting numb by the moment.
He then fights Gakushou again and gets more injured:
He pushes Gakushou and his army fodders stall Gakushou, while Akou pushes forward and then states his heart is starting to stop:
Since stating his heart is beginning to stop. He gives a whole speech, where he's essentially put out everything he's left. There's a solid decrease in his power where he's able to slash the fodder's chest and push them off the horse, but not able to cleave through them as he normally would.
After that he gives another speech related to Ousen. Where he gets stabbed in the Neck by a fodder, to which he replies with just swinging down.
So we're essentially talking about an Akou with a fucked up spine, who can't feel his legs, who is clearly declining in power gradually, and since the moment he stated his heart is starting to stop... a solid amount of time goes by and he's pushed by fodders all while his start is stopping.. Then he gets stabbed in the neck...at the end of all this he swings his glaive at Shibashou, there's no clash or anything, there's no overpowering of Akou... before his glaive even reaches Shibashou, Shibashou swings fast enough to cut down Akou.
I don't see how that's impressive and I don't see how a healthy Bananji, hell fuck Bananji, a healthy Ranbihaku, a healthy Shin, a healthy Ouhon, a healthy anybody in the 92-94 strength range would not be able to replicate the same feat, when you're getting a clean hit on a dude at death's door. But if that is his best feat, I don't see how it compares to what Bananji did at Shukai in the right wing, or what Gyou'un showcased.
And I have 0 idea where this non-sense of "Base Shibashou" is coming from in general. This man literally gave a huge speech talking about those who died, while yelling himself before the confrontation with Akou...where we can visibly see Shibashou AND Kansaro are pushing to end this as fast they can.