@Acurious sound's like you're so unlucky. okay, here's what you should do:
Talk to Insurance (the other guy's!): This is HUGE.
Find out their total loss threshold. What percentage of value makes them total it?
it's important to ask about "diminished value." Even if it's repaired, your MDX is now worth less just because it had structural damage. You're owed that difference.
Talk to the Shop:
Get specifics on the damage. What parts of the frame are hit?
You need to prepare for both. what I mean is that if repaired, you need to make sure you're happy with the plan. Consider an independent inspection after it's done. Then, pursue that diminished value claim.
If totaled, you need to research what comparable 2019 MDXs are selling for right now. Be ready to negotiate their payout offer.
It's a tough spot, but stay on top of your insurance and the shop. You deserve to come out of this as whole as possible!