I wonder what Order those nuns are from? I don't think too many nuns still wear the full habit these days, and instead wear either regular clothing or modified, short habit with or without a short veil.
ETA: OK, so I did a little research and came up with the answer that they are from a small Ohio-based semi-contemplative "order" called The Children of Mary, and further research turned up the Snopes page, with a little more information:
Yes, it's depressing. It's 2020, with an infinite wealth of knowledge free for anyone, and people are still stuck in the Middle ages for all effects and purposes. And I got to know him a bit and he's not a bad person, but propaganda and disinformation got there first and filled his brain with crap until there wasn't room for anything else.