Asmodeus does that very very rarely, as one might expect.
As it happens, though, Ferrer Maillol is currently in a state unusually apt to receive messages from Asmodeus, who has a message to deliver.
And Asmodeus does need to do this often enough, if very very rarely, that people ever hear about that time Asmodeus did it once; that way they'll go on sincerely pleading to Him in the extremity of their torture, and He'll go on getting to enjoy saying no.
Besides, it's funny. Have a vision, tiny squirrel! Asmodeus in His finite mercy has given you a temporary reprieve from all the infinite torment that will someday be yours.