Because everyone sleeps on Portland.
"I dribble rhymes like basketballems, people call me E.T....extra tallems."
"Punch you in the stomach, I don't give a heck"
"What about rhymes? I can hold my own. Knick knack Shaq Attack give a dog a bone."
This is from one single song on an album full of awesome hits. The production is good (better than Ceballos), there's some good features, Shaq mentions dunking a lot, it's just a solid, fun album. Shaq did a great job at making music. I don't recommend any album or even song that Shaq did after this, it's all trash but Shaq Diesel is a gem.
It's kind of like if Dr. Octagon was less about space and the future, and more about dunking and the present.