Spector has acknowledged that. Reminds me of this funny opening line.

> "There's a tendency among the press to attribute the creation of a game to a single person," says Warren Spector, creator of Thief and Deus Ex.

https://www.ign.com/articles/2001/11/12/deus-ex-2

Especially funny because by his own admission, Spector wasn't even a major contributor to the development of Thief.