I don't know bout you, but to me it looks like the half of the planet would remain intact, seeing as the meteor goes right through it. I believe there wouldn't be such a massive shock wave around the area it went through

But of course, the rest of the planet could crumble in another way, like collapsing together or simply vaporize, but lets say it doesn't.

I wonder what would happen to the other part if it survived, what would happen to gravity or the atmosphere. The core of the earth is clearly blown away, so living there would be impossible in the long run.