I dont know much about him, but why is he suspicious ? In the past he has pursued ISI and Al-Queda links and published a book on the subject too.
Heck, William Dalrymple the meddling hindu-phobe has criticized him for "Caricature depiction of Pakistanis" as per thookipedia. I suspect he might have been granted audience by Massood Jr. because of some DGSE push.
Maybe the intentions of Saleh and Massoud Jr. are pure, but Henri is suspicious. He seems to be a CIA minion. For one, he is one of the most prominent neoconservatives in France.
He first played a major role in pitting and supporting Kosovo against Serbia. He was also one of the more prominent voices calling for intervention in Libya to overthrow Gadaffi. After that, called for military invasions in Syria to overthrow Assad and in Iran as well.
Last year, met Svetlana Tikhanovskaia and gave his support to the liberals who oppose Lukashenko. His ultimate goal is "to impose an open society, LGBT-friendly and mixed society in the Belarusian dictatorship."
A Far-left secularist, calling for multiple regime changes and a Jewish ZIONIST at that? Rings alarm bells. This screams CIA asset all over it. Like I said, considering his actions and beliefs, I don't think Massoud Sr. would have wanted to be associated with this guy.