I just got done staying at an Angsana and plan to stay a Banyan Tree next month also using a Habitat pass. The answer I was given by Accor customer support that it's essentially at the discretion of the property when booking through Banyan Tree/Angsana booking channels / instruments. I reached out to Banyan Tree support but haven't received their response or position in the matter. In the case of the Angsana I was staying at, they decided not to honor my Accor status at all even though it was booked with Angsana.com. I'm waiting to get a response from the Banyan Tree property I'm planning to stay at in Tengchong.