Does WWE react the same way that we do to Smackdown? Putting no effort into based on the fact that it's a prerecorded show that is inevitably spoiled online weekly?
WWE has much deeper and more pressing than the quality of its b-show. I would miss Smackdown, but purely from a nostalic standpoint.
That's where Eddie wrestled his last match, where Lesnar and Show went through the ring, and many other momemts.
This is just another example of how WWE needs to invest more into their creative department. You can have a b-show, you can have a program where the top stars don't always appear, where you generally deal with the fallout from the a-show, but write it in a way that makes the audience forget that fact.
If the spoiled nature of Smackdown is the reason they put mo effort into it, then change that fact. Make Smackdown live, move it to Tuesday if you have to.
Smackdown will continue to be irrelevant until WWE invests in their own creative structure.