It’s both. People are misusing AI at the encouragement of companies who want to sell it.
What people want is factually correct information. AI doesn’t deliver this, what it delivers is competently presented and easily understood words which may or may not be correct.
Unfortunately, many people don’t understand how AI works so they don’t realize that they’re using the wrong tool for what they want to accomplish.
The reason AI is part of the problem is that it contributes to the spread of misinformation.