Someone decided that this, the last in a trilogy made to pay homage to the ultra violent R rated action movies the the 1980’s, should be PG-13. That right there tells you everything you really need to know about this movie. It can’t be a violent as the other two, thus the stakes can’t really be as high as the other two, and you can’t really pay homage to R rated action movies if you’re not making an R rated action movie. The fact is, everyone involved seems to have just stopped caring. But the creative team never cared enough to make a good movie from the beginning, so what does it matter?