when is a cot death - a cot death?

Sky News: Parents' Drug And Booze Link To Cot Deaths

Now I remember a few years ago when a cot death (aka 'Sudden Infant Death Syndrome'(SIDS)) meant the parents had put down their baby to sleep for the night in a COT (starting to get the drift here?) usually in a separate bedroom only to go in the morning to find the baby had died. There was a big stink at the time because many parents were being accused of having somehow killed their babies and were trying to cover it up. As if, if they had indeed killed their child, they couldn't think up of a better excuse than -'oh it just died in the night'. A cot death was a cot death because the baby died in a cot - not because the parent had got drunk or drugged up and had rolled over and crushed it in the night, or dropped it off the sofa onto the floor - or whatever... Yet now we've seeing those cases being called cot deaths as well? What is this - is it simply lazy research and/or lazy journalism (I stumbled upon this in Sky News after all) or (puts on tinfoil hat) another one of those 'let's blame the underclass for everything again' schtick so beloved of authoritarian states the world over? The hint being in the article's title - 'Booze and drugs' - middle class people don't 'booze' do they.

[I left a comment saying this - let's see if they bother to put it up there. (I've got a history of leaving comments on moderated places like the BBC and Guardian websites for them to never see the light of day - while seeing responses from the likes of 'Mr Angry from Tumbridge Wells' and from the ALL CAPS brigade get published instead. Funny that.)

Update: There's no sign of the comment.