It depends on what you produce if you make something in demand it may sell itself. For example if you operate oil wells or an ice cream stand. On the other hand if you manufacture bullshit advertising and sales may be key. What I do get about these llm SAS start ups is LLMs instrinsicaly mimic what is in the corpus so if your goal is to compete in an established product pace sure LLMs may be great autopilot but deterministic programs would be even better on the other hand if you are doing something genuinely innovative them you can expect an llm product manager to containmente it with what is already out there or alternatively make unhinged predictions. Llms have poor judgement for what is not already in the corpus.