Shavuot | The Claims of the Heretics

Shavuot | The Claims of the Heretics, by Rav Yitzchak Etshalom The public reading of Aseret HaDibrot (the Decalogue) was practiced on a daily basis in the Mikdash. This practice was banned elsewhere, due to the "Claims of the Heretics" - (תרעומת המינים). Why would there have been an interest in reading the Dibrot publicly every day - and why was it banned? Who are these "heretics" - and what was their position that made the reading an unfavorable thing?