What type of product was that successful team working on? I believe this can work wonderfully if the developers are close enough to the user, eg: building a too

What type of product was that successful team working on? I believe this can work wonderfully if the developers are close enough to the user, eg: building a tool for devs like github. But if the product and the users are alien to the developers then this is a recipe for poor UX and value (eg: building an accounting product)