Today's weather technology actually can and does provide exact and very precise notification of when FROPA/wind shift will occur. A facility hopes to turn between pushes, but sometimes cannot.
Looks like BOS was trying to sneak one more in before they turned the airport around. When he comes back around on 22L one can see a 22R departure in the background. It's just like we used to do at DFW---keep running 'em in one direction until they start coming out the other side.