No - it's not even a question. Bury the lines and you will remove a large number of causes for power outages.
My parents live in a neighborhood with buried power lines. Yeah, on average the power goes out less often. However, they've had a recent issue with the buried lines decaying after 30+ years underground. When that happens, it's a much longer, and more expensive repair.
The thing that bothers me is well meaning landowners planting trees near power lines. Personally, I blame schools that hand out saplings to children without proper education. Yeah, they look nice when they are small. They don't stay small.