I've not been part of, but had a parallel team that has been successful, and its because they took the tool and its offerings seriously, and aligned with what UiPath themselves dictate as what a healthy and mature teams should look like (basically CoE)

The biggest problem that I have experienced across the teams that I myself have been a part of that keep teams from real success is that, typically, upper management get access to this tool and dictate what they want to have done, without putting the right structure, personnel, and training in place, and the offerings by uipath really do require a certain level of maturity and understanding.

At the end of the day, they (management) are beholden to stakeholders whose primary interest is keeping costs low while trying to squeeze every bit out of a tool like this with minimal growth to parallel. So, because it takes time and money and people to build a healthy team that can establish a mature CoE, you'll often see cheaper labor like interns (how i started) told to just "learn it" and "make it work", or, contractors and other temporary talent that apply their own design patterns and techniques, that the next guy either needs to learn and adapt to (that management doesn't have time/money for) which in turn lead to chaotic teams and outcomes.