I posted the link to Brody piece as soon as I found it. The mammoth sensesofcinema site doesn't have anything on him, which speaks of a certain marginality, at least in the English-language world. The text most widely used to teach French Cinema at American universities, Alan Williams' Republic of Images (Harvard U Press,1992) mentions Doillon in one short paragraph as a "specialist in intimate family dramas" often shown primarily on specialized TV channels. Williams praises him for his "consistent refusal to sensationalize his material".