Where I work it's because we have all of these frontend developers and they need work to do. We keep sticking with ReactJS as the default because we have these

Where I work it's because we have all of these frontend developers and they need work to do. We keep sticking with ReactJS as the default because we have these folks and theres a snowballs chance in hell that they'd go, from their perspective, backwards in terms of the technology they use to do their jobs.