What is the effect of age discrimination in the context of Canada Pension Plan widow's benefits?

In Law v. Canada, supra, the complainant had become a widow, but she was not entitled to a widow's benefit under the Canada Pension Plan because she was under 35 years of age, without dependent children and not disabled. It was stated that the purpose of widows benefits was to meet their long term financial needs. It was concluded that there was no discrimination by virtue of age. The distinction, based on age, reflected the reality that young widows are more likely, in the long term, to fulfil their financial requirements by employment or other means.