That album was meant as a "writer's" album above anything else. For me, having Herbie as the only soloist works towards that end quite nicely, another entry into the "featured soloist with orchestral backing", only in this case the orchestra consists of three horns, although voiced in such a way that the textures and harmonies suggest at least a few more being present.
It's certainly not a "visceral" album by any means, and the Rudy/Duke Pearson engineering/production team gauze up the sound a lot, but damn, that's some gorgeous , subtle, meaty writing on that album. And, as you say, some excellent playing by the composer as well.
I hear ya' on that one, but otoh, do any of us raise our children with the goal of destroying their innocence as quickly as possible?
Listen to the two horns that are not playing the lead line...some pretty interesting note choices & spacing of intervals there.
Like I said, Rudy & Duke gauzed this one up pretty heavily, but the music itself is not without some bite.