That's not very sanitary and I'm willing to bet that she would get quite a few complaints doing that.
I can see that some folks skimmed over the recommendation to get a clean diaper on BEFORE the flight, to avoid having to change on the plane unless necessary.
For everyone that said how awful/unsanitary it is:
1) You must never see people use the plastic changing pad that came with their diaper bag. Also, you haen't seen them use wipes for cleaning up their own hands afterwards.
2) You are not aware that aircraft do not always come with changing tables. Have you personally tried to change a baby in an aircraft that didn't have them?
3) You do not realize that it is against regulations for passengers to be in the flight attendant areas of the plane for any duration of time.
4) You must never see folks with the scented blue diaper disposal bags.
5) You are asking a parent to put their baby on the floor of an aircraft lavatory to change their diaper. Or on the floor next to the bathroom, where men pee on it during turbulence? (I was a corporate weekly business traveller once. Talk to me about what I've seen in airplane bathrooms....)
6) You have never sat in front of or behind a stinky baby that hasn't been changed for a 5 hour flight.
7) You've never been on a flight where a woman got out a bottle of nail polish or highly scented hand lotion! Much worse than a diaper with urine in it that goes immediately into the afore mentioned scented bag!
8) You haven't seen the happy faces of the folks around you after the baby has stopped fussing about the diaper and is happy again.
Why is it that germaphobia has replaced the assumption that many people do posess common sense?