It's dismaying to see no black people among the employees in the picture.
The composition of the company photo struck me too.
It’s obviously not true is all cases, but it can be used as. A proxy for racism and/or filtering out people with differing political or religious beliefs.
It would be nice if the article had dwelt briefly on what “culture” actually means rather than leaving it as an ill defined concept (that can be manipulated to less desirable ends).