This article from the Catholic Encyclopedia online sheds a bit more light.
Pope John XXIIWhat I gather from this one article is that he never actually
taught anything heretical, nor did he try to change church teachings.
Quibbling over when someone will behold the Beatific Vision after death is not as serious as inventing a new "Mass" or telling someone they do not have to even hold the Catholic faith to be saved, (as I recall B16 saying, in essence, during one of his visits to a ѕуηαgσgυє).
Someone please correct me if I am wrong.
Marsha