Is Harsh Judgment of Charlie Sheen Just Evidence of a Hollywood Double Standard?

In this article, they are talking about how Charlie Sheen may be taking too much criticism from people that are looking out for him as a Hollywood Star. They compare Charlie Sheen to rockstars, Steven Tyler and Keith Richards because they were also hardcore partiers and had kids of their own, like Sheen. They article asks the question on why people are talking so much about Sheen and not these rockstars who have done similar things as Sheen.
My reaction to this article is that I sort of agree with it. I mean being a Hollywood star and doing things like this is very common between the stars. I feel the only reason they're criticising him so much is because of his interviews.