Rashi says in Parshas Kedoshim [20-9, and so it says numerous times in Chazal] that "דמיו בו" and "דמיהם בם" is a reference to סקילה. How do those terms imply סקילה more than the other מיתות בית דין???
This is actually an "old" kashya. From the "stone age".
Asking for an executioner friend.