There's a questionable point they brought up though.
Not just questionable, but outright false: The fraction of income received by the 1% of Canadians with the highest incomes has been dropping every year for the past decade. Unfortunately the Liberal party policy process doesn't include any mechanism for introducing evidence or debating facts; I'm hoping that this will be corrected (a new party constitution was approved over the weekend which will result in a new policy formulation process).