Given it was Rangers-Diamondbacks, even not knowing anything else we knew it would be low rated.
That said, I hate the idea of people making any huge talking points out of television ratings. If fans say they are tired of the Yankees and Dodgers, then act like it.
There are lots of reasons for baseball's slippage in the public imagination - part of it is less people watch any individual anything now (besides football games). And I do think the rules changes probably helped some of the reasons. But the big issue is that the sport doesn't market its players. I mean, you look up and down major league baseball's OWN media arm and with some notable exceptions (Sarah Langs, Pedro), it is chock full of commentators who rip the current product. Indeed, one of the guiltiest parties is working the World Series!