Traditional or Contemporary?

Last week, a speaker said that these terms to describe worship should no longer be used. These words bring about a point of contention and possibly deep resentment. Besides, what exactly does contemporary or traditional really mean? He argued that there are two, and only two types of worship: Relevant and Irrelevant. “Traditional” worship may be relevant to the older members of the congregation, but completely irrelevant to the younger generation, and therefore they may be seeing younger generations become scarce in their congregation. Do you agree the idea that there are only two types of worship and it’s not traditional or contemporary, but relevant and irrelevant?