In the week starting 25th June, 1944, Germany launched 127 V1 rockets causing 357 deaths (2.81 per missile)
In the week starting 2nd July, 1944, Germany launched 119 V1 rockets causing 262 deaths (2.2 per missile)
The lower death number of deaths after 1st July could be attributed to the misinformation being spread to the Germans which causes the missiles to fall outside the heavily congested centre of London. Lives were probably saved by this decision.
The implication from the article is that the Jews were targeted but this is not the case.
The Germans knew which direction London was, but the exact distance was determined by the damage reports that they received. All Churchill could do is affect the distance that they travelled. Better to have them fall short than to fly over the city in the hope that they had enough fuel to carry them out of harms way.
This was the right decision for many reasons, the Jews were never targeted by Churchill.... bad article for giving people that impression.
Source of deaths from V1 ---> http://www.flyingbombsandrockets.com/statsbyweek.html
OTOH, I think the Germans were intelligent enough to know how to read a map and use a compass and knew the V-1s capabilities well enough to do their own targeting.