You don’t want to wish harm on any Jew.
And one may never know the ways of the Ribono Shel Olam. One who talks creates a barrier to the Tefillos, for himself and others. Why he’s is not immediately punished is Hashem’s cheshbonos. He is forgiving and very patient to allow for repentance, but, no doubt, there is a Judge and Judgement.
Additionally, as Ohr HaChaim points out, one who sins and causes another Jew to bear his punishment, as in this case, will be dealt with EXTREMELY SEVERELY. To quote:??? ???? ?? ????? ?? ?????? ??? ????? ??? ??????.