I'm assuming that you are on her side of the pond and basing your post on what you've heard on the 'loaded' news or newspapers.
Either that or those colleagues are 'Nike' sponsored also, in which case should their opinions not count?
I ask this because the colleagues I have heard disagree with her.
As has been said, rules are rules and this particular umpire has been shown to be consistent in enforcing them for both genders.
Williams has become increasingly vocal, both on and off court, and thinks she is bigger than the sport.
Looks like she is!