Search used to be a marketplace of ten blue links. Today, a customer types a question into ChatGPT and gets a single, confident paragraph in return, with or without a citation. For B2B categories, that paragraph is often where the shortlist forms.
If the paragraph doesn't mention you, you effectively don't exist for that query. Teams that treat AEO as a specialist discipline now will compound an advantage; those that wait for best practice to settle will arrive to find their competitors already cited.
"The model doesn't cite your brand because you said it loudly. It cites your brand because a specific passage, on a specific URL, was the cleanest way to answer the user's question, and the attribution came along for the ride."