You can admire what he does without really enjoying it, and two hours and 46 minutes of pulverized architecture is a lot to endure. But in every Michael Bay movie there are at least a few moments of inspired, kinetic absurdity. Late in “Age of Extinction,” a giant spaceship hovering over Hong Kong, equipped with some kind of magnet, sucks up a lot of vehicles — buses, trucks, fishing boats, ferries, whatever — and drops them onto the city below. I could not tell you exactly why, because it doesn’t matter, but the sequence is both exciting and revealing. It reminds you what these movies are really about: a boy at play, reveling in the creative and destructive power, and the glorious uselessness, of his own imagination.