So do a lot of folks. Like population geneticist Graham Coop, for instance:
It's a neat parlour mathematical trick and a mathematical true that genealogical CAs exist. However, saying that this reconciles science w. the idea of Adam and Eve, sweeps a lot of stuff under a very patchy, ugly carpet. 5/n
— Graham Coop (@Graham_Coop) October 6, 2019
Swamidass identifies as TE/EC in this old post from 2016. “I, for one, am a theistic evolutionist (evolutionary creationist) that (sic) beleives (sic) in a historical adam and eve (sic). So does John Walton too. … So there you have. I just defended a YEC. =)”
He stopped identifying as EC because … well, who knows? I suppose because it was inconvenient for marketing a book on 6000-yr-old Adam to YEC.