By the way, current estimates of Jewish casualties are lower than it was before – in tens of thousands rather than 100,000 and higher, primarily because Jewish communities in Ukraine were small and dispersed, as the Jews were managing Polish farms, and probably had 50,000 people total. By those times, it was understandable that stories and rumors created an impression of an even bigger suffering that it was, given the high proportional devastation.
At the same time, this rebellion led to further occupation of Poland by Sweden and Russia, leading to huge losses both in Polish and Jewish population immediately then, and eventually bringing Jews into Russian empire, with all the suffering that this entailed. So, maybe the focus of remembering 1648 is in a longer term effect rather than immediate.