I watched the analysis on both MSNBC and FOX after the press conference.
Both said that the questions were softball and Trump should have been asked about his security adviser and North Korea. FOX said the U.S. trade with Mexico is far greater than with Canada.
Both made the obligatory 'Canadians are polite'. Neither knew that the Syrian refugees you took in were families,  homosexuals and orphans and left the viewer to just assume the pictures of the desperate people going to Europe is what Canada dealt with.  MSNBC spent more time talking about Trump and his problems than Trudeau. MSNBC had a former Canadian ambassador who did most of the talking with the usual sound bites. One of them mentioned (as a dig at Trump) that Trudeau said he would take those affected by the travel ban not knowing that the reality is different as in Emerson.
The consensus on both was that it was just a 'safe' appearance and meeting for both. 
Trudeau served the purpose of a Canadian logo that talks.