OK, I’m not fully caught up on Rebels. Still, there’s no way Owen can send Luke off to the Academy without knowing that he has Force sensitivity and a heritage he has to hide. Even if the Inquisitors are gone (and does Owen have any way of knowing that they’re all gone?), that’s still too much of a risk of being discovered. “I’ll let you go next year” has got to be a lie.The Inquisitors where I think gone by that point. A bunch were killed during Rebels, and that was a few years before Luke enters the picture.