If its lacquered with anti uv laquer then its fine, if its unlacquered then uv rays will over time degrade and yellow the resin
Also Untreated carbon isn't waterproof, well it will be waterproof for a while but over time you can get water ingress which over time could ruin the component.
Personally I'd flat it all back and relaquer.
You could do all the prep work at home, but for a big panel like that I'd get a pro to spray it. carbon is tricky stuff to laquer, loves to leave pinpricks