I tend to agree with this thinking. Look at the other timelines. As long as your case is staying close to the averages, that is the best you can reasonably hope for. One's elected representatives are great potential resources if something has gone wrong in your case, or it has been held up for something like the namecheck. I totally understand your frustation with the process, but this is 'how it is' and with the current climate in the world, it is not likely to change soon. The best thing to do is to look around at other recent cases/timelines like yours and make a realistic estimate of when your wife will get an interview, and prepare both you and her for that wait.