Mine on my 05 are worse. Not only hazing but what looks like the beginning of the plastic actually drying out and turning brittle. Polishing didn't help so I guess I'm stuck with it.
Buddy, I've repaired worse.
The flaky/bubbly crud is the UV protection layer going bad. What did you sand it with? P500? P800?
I've gone so far as 400 wet-n-dry on a 2001 GMC Yukon. Don't despair! fix it!