Noth for nothing, but PJIA has got to be one of the shortest runways these big carriers have to land on!! That doesn't leave a lot of wiggle room for error! Smart thinking on everyone's decision!!
Very unusual westerly winds prevailed yesterday, instead of the usual East or ESE winds. Planes usually land and take off into winds. It's difficult to land "with" the wind, hence arrival delays. There were also issues as CDG yesterday so Air France flights were very late to begin with.