From an RAF perspective the Wg Cdr was wrong!
AP 1358 Chap 8 Parae 0829;
Positioning of Breast Ribbons........A row is to consist of not more than four ribbons. When more than four ribbons are worn, they are to be made up to display as many complete rows of four as possible with any incomplete row at the top........
http://www.raf.mod.uk/rafcms/mediafi...18430AAA8A.pdf
Can't speak for the Army or Navy of course.
Daf
Edited to get rid of a load of blah that can be read, by those who so wish/are bored, by following the link.