At the end of the day UX is the product, that’s what the customer sees. Maybe you could get away with it with early adopters. A good UX team will help focusing

At the end of the day UX is the product, that’s what the customer sees. Maybe you could get away with it with early adopters. A good UX team will help focusing on core features instead of useless ones and optimum experience. For a startups, a good UX designer could validate a MVP in few days without a line of code.