Would you say that to someone planing to call the child Siobhan?
No. Because it isn't something that looks, to a non Irish speaker, like a yoonique spelling.
I had a perfectly normal English name with a terrible spelling and spent the first 2/3 of my life saying, "My name is X, spelled Xxyy..." and 9/10 times the person I was spelling the name too would have written the 'normal' spelling.
A deed poll eventually solved that problem.
Most people can cope with an unusual name fine after they learn it.
But from personal experience not if they think it is a very normal English name.
I taught a Iona once, she had to put up with people thinking it was pronounced like the Scottish Island because, outside Wales, that's what most people read it as.