Some sellers definitely go beyond with their guarantee….which makes you want to shop more with them….Agree. Seller should clearly take a stance on the situation and Put it in the listing. If they can’t afford to replace coral due to shipping issues, that’s fine, make it known.
Then buyer can choose how to move forward and decide if it’s worth the risk or not.
I will say this, buyers who guarantee their stuff are probably getting more customers as a result, and more referrals and future business