I laugh. 
Trudeau's holiday, while ill-considered, in no way can be seen as opening the door for some form of external influence on national policy. The Aga Khan has been a family friend for decades and even the opposition would be hard pressed to concoct a story of influence.  But a conservative candidate holidaying on the yacht of one of the most influential oilsands magnates in Canada? Yes, I am certain dinner conversation covered topics like climate change, pipeline approvals, oilsands developments, federal support abroad etc.
Or maybe they just talked about Murray's ski hills and the latest snowmaking machinery. 
Hardly.