That exains a lot...
I do use AI to assist my programming, but I always take what it suggests as likely highly flawed. It frequently sends me in the right direction but almost never is fully correct. I read the answers carefully, throw away answers frequently, and never use a solution without modifying it in some way.
Also, it is terrible at handling more complex tasks. I just use it to help me construct small building blocks while I design and build the larger code.
If 30% of my code was written by AI it would be utter trash.