I know what its like to be an "aviation expert".
1. you don't get paid.
2. you are often edited in time or content in one way or another. sometimes your words are taken out of context.
3. you are asked to come up with reasons without even seeing a picture of a plane that has gone down.
4. I've seen other experts with credentials like NTSB etc...when they are on tv their stock in trade answer is: its too soon to tell. it would be irresponsible to speculate. Even when video is available of a wing falling off the plane they won't speculate on "structural failure".
Anyone on this forum with an ATP, maybe 10,000 hours plus or minus would easily qualify as an "expert". If you want to be an expert, just contact your favorite media outlet and offer your services.
You might be able to get something good out that will change things for the positive. You might not.
You might even be shot down here on this forum!
good luck!