Also, auto-play often preserves the intrigue in the game. Simply, with approximately equal levels of play between opponents, a random misclick, or confusing the order of troop deployment and losing as a result, can already decide the game. The result is that one player makes normal moves, and the other skips for 3-4 days.
In my opinion, there shouldn't be any regulations about this. Playing with auto-play or without it is a personal matter for everyone.