Does anyone else find this strange?

A friend had a baby boy 5 months ago and named him Harrison. Yesterday we were informed that his name is now Heston....

Apparently they felt that there were too many Harrisons and that they didn't really like the name so they decided to change it. They knew they were having a boy from 20 weeks so I sort of find it odd that they changed it after 5 months. What do you think?