The marriage issue is complicated by many factors, one of which is religion. It doesn't necessarily mean he doesn't believe in equality.
Sure, he might "believe in" their equality in the same way that most people "believe in" getting enough niacin. That is: they might state that belief, but they will never act for it and will often act against it.
And I'd add that if Eich believes in their equality and now regrets working against it, he could just say so. That he has energetically dodged the issue when it is of obvious concern to the people he can now fire says something on its own.