if I work for or own shares of a public company, I love those guys to look into the company I work for. If they find out that my employer is cooking the books, they have done a massive service for me.
It would probably be ideal if reports came from people who don't have a direct financial stake in the success or failure of the company they're writing about. However, I'll grant that the world doesn't often let us work with ideals for a lot of very valid reasons (retirement accounts, for instance).
as long as they disclose the position i don’t see the issue
Not really, because then you run into the opposite problem: "experts" making random predictions without putting their money where their mouth is. In a sea of "experts", who do you trust?