Agreed, Margaret. Especially when there is a huge and busy baby names forum in which the importance of a name to someone's identity is regarded as axiomatic, and fairly frequent threads (one from just the other day which is probably still active) about how annoyed/overlooked people felt with colleagues/family/friends who continually mispronounced their name or substituted it with another name entirely.
But suddenly, in the context of taking someone else's name on marriage, names are completely trivial and tangential to personal identity. 