Combat isnt determined with one die roll. It seems weird to want social encounters resolved the same way. They should be resolved with X successes before Y failures though, so its not a one failure ends your chances like it is currently.
Honestly, if they wanted to have multiple skill checks to swing the conversation back and forth and put some suspense into it before resolving based on your aggregate, that would be an interesting approach. It would make conversation feel a bit more like combat, and even though it breaks from DnD it would still make sense and be satisfying to play out.
The approach they got now though is just frustrating and stupid. What were they even thinking?