There's a _lot_ of assuming happening on this post so far. My understanding was the Twitter account previously had different handles, including her real name. I don't think that level of sleuthing requires internal access, using old/archived tweets can unmask the account.
You’re correct but even if Twitter is not responsible here, I’d still like to hear the reporter clarify why she thought the real name of the owner of the account was newsworthy (if that’s indeed what happened, it seems corroboration is scarce thus far)