Time to market is essential and projects usually have budget constraints which means that they cannot be developed for a long period of time without producing value to the customers or the company. Therefore, it is necessary to pick what must be created first.
If the UX professionals put themselves in the shoes of the users of the field, we will realize that it is not very user-friendly to have multiple and confusing terms to address the same thing.
It is difficult to tell a client that you will design a user experience. It is better to explain exactly what you would do in your design that will increase the usability, conversion, provides what your users want, and performance of the page.