The article begins by making a plausible story for his motivation. He had been sued for patent infringement in his own company - "overreaching patents" caused a

The article begins by making a plausible story for his motivation. He had been sued for patent infringement in his own company - "overreaching patents" caused a lot of damage to him personally before and he saw Alphabet use one to attack Uber. And Uber is indeed smaller than Alphabet.