There are also recent studies that confirm different manifestations of it, for example [1]. I tend to agree with Wikipedia on the publication bias aspect, but I don't think you can sweep away the impact of stereotypes at all. I also think working to change tech stereotyping (in general) as one of the things that will actually make a difference, so I guess I'm biased too.

[1] http://www.ncbi.nlm.nih.gov/pubmed/23713580