Membrane sweep

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I decided to post this here just in case things get heated. 
EVERYONE I know within this past year (12 total) has got their membranes swept, with the exception of my friend who was induced and passed away due to amniotic fluid embolism. 
Why is this happening? And these people are not severely over due. One had it done 3 weeks early. 4 of them got it done one day past due. Another got the sweep done a week before. Can anybody give any insight to why everyone is having this done??? 
EDIT DECEMBER 7 2016::: ....... Why in the heck are people commenting on this?? Who the fuck has dug this deep into my topics?