Seems like some Good Samaritan should set up a mobile pole camera (or twelve) outside his house 24/7. Rest easy, it's all being done for his own safety!
Mysterious? Yes. Suspicious? I wouldn't think that. Plenty of houses in my neighborhood are blurred. I don't think much about it. And yes, I can just walk over and look. But I'm their neighbor. Not someone megameters away...
Edit: Well maybe you aren't a target to begin with, but mass scanning can make you one. Like if you park some expensive car out front and someone far away checks all houses with expensive cars. It's a bit far-fetched, but there also aren't that many reasons not to blur your house unless the concern is they only target blurred houses.
You can if you're Israel:
https://www.middleeasteye.net/news/google-blurring-satellite...