To be fair, power rankings are really about who has played the best recently. It's not about overall record, so in theory if the Nets came on with a 10 win streak they might be #1 in the power rankings even if their record was still bad.
So while I don't really agree, a big win over the Lakers and some solid play as of late made Stein put Cleveland in the #1 spot. You might not agree, but I don't think it is ridiculous or indicative of the Lebron hype machine.
Please folks, there are other, much better examples of the Lebron love fest being unfair in other places than this.