Personally I think he knew the outcome earlier this week and waited to speak to the media out of respect for the families. His first interview was hours after the implosion announcement.
As he says, it’s a very tight knit community in which he is a part of and has been for almost 30 years. I think he’s trying to use his voice to ensure that collateral damage does not occur to other less reckless submersible makers, who in turn tried to warn OceanGate.