I wouldn't use J-School grads as a particular proxy for anything. I've known J-School grads who worked for various IT publications (though not for less conventional pubs like Techcrunch). But then I know a number of WSJ reporters and op-ed (as well as at least one person who moved from IT trades to general business) who don;t have J-School degrees. There are a lot of ways to learn standard journalistic practice without going to school for it.