I am a midwife and have just gone to the latest safe sleep training, so I can give you exact details about all the SUDI deaths ("Sudden unexpected death in infancy") in the country I am living and working.
Of all the babies younger than 4 months dead by SUDI:
Sleeping on their back: 5%
Sleeping on their side: 31%
Sleeping on their front: 64%
"I dont think it does significantly raise risk of SIDS if the baby is full term and has no other medical issues."
Sleeping on the front increases the risk of dying by at least 6 times for healthy, term babies. Even more (up to 20 times more!) for babies with other risk factors, such as prematurity, smoking, etc.
OP, no one is going into your house to tell you how to put your baby to sleep. These data, and the chats that maternity health professionals have with you, are intended as information to help you make your choices, which everyone acknowledges are based in more than one factor.
However, without this information you wouldn't have all the facts. It is not "taking the piss". Babies sleeping in their front increase their chance of dying of SUDI by a huge amount. The chance is not "minute", we are talking 1 in 200-250 babies who sleep on their front dying of SUDI. Several babies in a small town. Hundreds in a small-sized city.
If your baby happened to be one of the unlucky ones and no one had told you this, how do you think you would feel about it?