the guidelines are in the process of being changed from 6 months to 12 months for sleeping in the same room
All research which shows a better way to reduce to SIDS risk is good news, and any and all reductions in SIDS is a wonderful thing. I am so sorry Duchess for your loss 
However sometimes parents cannot follow every single item of guidance to the letter and have to do their own reading and make their own appraisal of what they feel most comfortable with.
Like hundreds of thousands of other parents of small babies, I had a partner who worked often in the evenings and another small child to look after. For a few months I was fortunate that the baby would just fall asleep in his pram in the evenings and so I could keep him with me in the living room, kitchen etc (though I'm sure some else will come along and say that a pram is less safe to sleep in that a cot or basket, so that might not be ideal).
However once he got a few months older and wanted more of a routine and didn't settle so well with noise or light, then we had to think about what worked for us as a family, as individuals, for everyone's best interests. Could I ignore my older child every evening for several months because the baby wouldn't settle in a sling or on the end of their bed? Should I leave the older child to basically settle themselves to sleep for several months because the only place the baby was happy was in their cot, where I would then need to sit in the dark with them? Should I risk my own (at the time wobbly) mental health by spending all day alone with the children and then having to go straight to bed at 8pm every night, never being able to just watch half an hour of telly, make a phone call? Should I cope every evening with a wailing, distressed baby who just wanted to be in the dark and quiet to go to sleep?
There's no right or wrong answer to these. The guidelines are a package of recommendations, and in real life people end up making decisions when something isn't working for them - and particularly when there are more members of the family to consider than a new baby.
In an ideal world it would be easy to stay in the same room as a newborn all the time, but in real life there are often many things that make it harder. Which is why many parents do make the decision that for an hour or two, a baby may be settled without them.