The vulnerability stemmed from incorrect package name references in error messages/documentation. The GitHub PR #33813 specifically mentions fixing the exception message's package name, which indicates the error message was generated in HDFSHook initialization when dependencies were missing. This function's error message was the primary vector for the misleading installation instruction, making it the clear vulnerable function. The confidence is high because the PR's context and commit message directly point to this correction in the HDFS provider's hook implementation.