I've been preaching this since day one. Saudi Arabia is the closest thing to Vatican City or Jerusalem Islam has in terms of religious importance. It does not look good to the world when the den of Islam is run by totalitarian theocrats. Israel may be human rights violators, but AFAIK, they aren't to their own people.
And I saw a video in which an Islamic man told Cnn that other countries with majority Muslims did not practice such abuses, including ones with female rights allowing multiple female heads of state. and that it was a regional problem. Sadly though, that does not excuse the fact that Muslims pretty much accept or ignore that the place where the Holiest of the Holy has left the physical trace of His presence are being monsters to their own people. Muslims worldwide do not hold the sharia law views of Saudi Arabia, but they also do not make widespread protests of it's practice. It makes it look as though Muslims suffer from Kitty Genovese syndrome. Even worse, it makes it seem that on some level, that is what God wants to happen, which pretty much means Muslims view it with some kind of justification.
Look at gay rights. Although there are definitely still Christians against it, even punishing it with death in some theocratic Christian African countries, Christian protests supporting it were so much that both the Pope, the highest leader of the Catholic Church, and the state ended up supporting it, because the Pope understood that the highest officials of Christianity supporting human rights abuses such as homophobia made Christianity look horrible.
But sadly Muslims and Saudi Arabia do not seem to understand this. Millions of Muslims travel to Mecca every year, but AFAIK, never is there a widespread protest for human rights change. Instead they go and leave with complacency, meaning that may they view God as accepting of the atrocities going on in his Holiest house of prayer, or maybe they are just fearful of the Saudi government. Either way, it makes Muslims appear to accept human rights violations on some level out of either dogma or cowardice, and that leads to one phucked up public image.
But then this leads back to us, the U.S. We openly deal with Saudi Arabia and our government does not openly protest their human rights violations for fear of loss of business, which means we are essentially giving the Saudi government the funds they need to suppress people, which makes us look bad to the rest of the world.
In the end, Islam looks bad, we look like hypocrites, and terrorists are given the moral justification they need to perform human rights abuses (admittedly ISIS has performed acts forbidden even by Islam, such as live immolation, but when compared to stoning, is it really different on a moral level and not only a dogmatic one?)