I'm so sorry you lost your new baby. How heartbreaking. Is this the baby someone posted about that they thought was impacted from the superworm and was so dehydrated? Were you the one soaking with coconut oil? (I just wanted to know we are talking about one chameleon with a problem from eating a superworm and not two different animals.)
One other thing I wanted to mention, how do you know for sure she died of impaction from a superworm? Did the vet make a diagnosis? Did the vet do a necropsy or just make a diagnosis based on her symptoms? I ask because sometimes what we lay people think happened isn't what really happened. Two days ago I lost young wild caught female that had been doing incredibly well. As I was feeding, I heard a funny rasping sound, looked into her cage and found her blanched and in distress. She was gone in minutes. She had chewed up cricket on the outside of her mouth. It looked very much like she vomited and aspirated or choked to death even though her throat was clear. Yesterday I opened her up and was surprised to find two very large lung worms that had punctured out of her lungs. What seemed obvious to me, choking (sudden death of a fat, healthy chameleon during feeding), proved not to be the case and it was only revealed on necropsy. I always like to know why because I want to make sure I change everything I can so it won't ever happen again. I am just saying that what you think happened might not have. I understand the guilt you are feeling right now and want to reassure you that really, it's not your fault. How could you have known? We do the best we can with the information we have at the time and strive to do better. I am truly sorry for your loss.
On a side issue, I don't know how you were housing the two chameleons, but I just wanted to bring up if you have more than one chameleon that they need two separate cages with a visual block. You might already know that, but wanted to be sure you knew that in case you end up getting another chameleon.