You want to prove that X can solve their problem. You might not have X, but you can prove that you've tackled the riskiest challenges to producing X.
This is what's called a prototype, not a product. A product works as is and should probably handle whatever diction the customer throws at them. Prototypes are proof of concept.
However, people have always put up with lower quality products as long as it solves the problem. Look at the early decades of computers. What UX? Look at AWS or the average CRM. If they can't improve the user experience, just offer training to the product operators.
This is what's called a prototype, not a product. A product works as is and should probably handle whatever diction the customer throws at them. Prototypes are proof of concept.
However, people have always put up with lower quality products as long as it solves the problem. Look at the early decades of computers. What UX? Look at AWS or the average CRM. If they can't improve the user experience, just offer training to the product operators.