OK, I'll bite.

In the case of Vancouver Island North and Nanaimo-Alberni, the NDP raw vote stayed constant or slipped a very tiny bit, while the Conservative raw vote increased, and the Liberals' fell bigtime.  The Greens picked up some of that falling Liberal vote (more so in Nanaimo-Alberni where John Fryer was running), but most of the rest stayed home or went Conservative.  Turnout in both cases was down 3 percentage points (a small drop compared to many parts of Ontario).

In Kamloops, the NDP raw vote actually increased along with the Conservatives, and the Liberal vote (which is usually much higher in Kamloops than anywhere else in the Interior) again dropped substantially, half going to the Conservatives 3/4s of the rest going to the NDP and 1/4 going Green.  Turnout was not down in this case.  The NDP was 10 percentage points (just under 6,000 votes) behind the Conservatives.

So, to answer the question, the NDP missed winning these seats NOT because its vote stayed home, but because it was unsuccessful in winning over disaffected Liberals.  I can't believe Dana's video had nothing to do with that.