我不觉得这是一个typo，relevance 其中一个含义是：
practical and especially social applicability （可大致译成：实用性，尤其是社会适用性）http://www.merriam-webster.com/dictionary/relevance

网上也可以找到不少将relevance译成“意义”的情况，现举两例：
Jean Cassou's message on the ethics of individual responsibility has not lost relevance.
让•卡苏对个人责任之道德规范的看法迄今仍有重要意义。

Indeed, their relevance and capacity to inspire have increased, as nations and peoples have become increasingly interconnected and interdependent.
事实上，随着国家和人民之间的相互联系和相互依赖日益增加，它们的现实意义和感召能力业已加强。