You're right.

"I do not intend to publish or republish any work or text of which I am the author, ... Any edition or dissemination of such texts which have been made in the past without my consent, or which will be made in the future and as long as I live, is against my will expressly specified here and is unlawful in my eyes. ... If my intentions, clearly expressed here, should go unheeded, then the shame of it falls on those responsible for the illegal editions, and those responsible for the libraries concerned"

Source (orig. & trans.): https://sbseminar.wordpress.com/2010/02/09/grothendiecks-let...