Folks, we need to talk. You seem to be confusing "applause" and "standing ovations." You should applaud for basically every performance you go to, even if you think it's a heap of garbage. You don't have to applaud enthusiastically, but a polite clap is nice and it won't kill you.
A standing ovation, however, is for superb and extraordinary performances. It is not rude to not give a standing ovation. Just because you see everyone leaping up and down fifteen times during the State of the Union address, does not mean that you need to follow suit when you go to a play or concert.
Bart and I went to a concert at BYU with a professor of humanities (and a good family friend). When the concert was over (and it was a very nice concert), he looked around at all the students giving standing ovations and told us "You're only supposed to give TEN standing ovations in your life." Now, whenever we are at a performance, Bart and I say "is this one of the ten best shows of our lives?" It rarely is. We're hoarding our ten for our nineties and then we will give them to every show we see so that we don't die with unused ovations.
All of which is to say, the people who were standing and ovating last night at the show need to get out more. This show was surely not one of the best ten shows ever. Just because others are standing up, doesn't mean you have to. If the show didn't blow your mind, don't stand up. Sit proudly.
P.S. (And none of that lame excuse "I was only standing because the people in front of me were standing and I couldn't see." There is nothing to see, people. It's just bowing).