Yes, in a nutshell...basically the more intricate the carvings in a love spoon - the greater was your display of love. Dydd Santes Dwynwen isn't really to do with exchanging love-spoons -> as this was more a custom or tradition for a man to give a spoon to someone he intended to wed
I think it became interlinked with Santes Dwynwen due to the sentiment behind the story...