True in some cases but every snake room is different.
For example my snake room is a spare room above the garage right under the roof, since it is the snake room, this room has been cut off from the AC system.
In the warm months May through October the room naturally reaches 86/87 during the day (no heater needed and during those month I do not provide a hot spot either), the rest of the house is set on 74/75
During the winter the room is heated at 75 with a oil filled heater and a hot spot is provided, rest of the house is at 68.
So the bottom line it really depends on the snake room.