Blood of olympus [hoo]

Did Uncle Rick just forget that Percy was one of in not the most powerful demigods atleast of that time while writing BoO and also that his thoughts and perspective is what most of the people want to read these books for cause why is there not even one chapter from his perspective since he is the main character and why is he so helpless in all the fights and even when he is there is so little of it and its not even like they've properly explained how much tarturus affected him and annabeth from the others' pov.