Nothingness:
I would say the wins I have against you and others here playing Espionage and my very high win percentage in Sabotage variations at IYT adequately refute your claim that I am inexperienced.

The fact that "turtling" is a well known and widely used strategy does not necessitate that rules do not discourage their use. On the contrary, rules are commonly used as a mechanism to deter such strategies. The following is copied from the site you linked in your message.

"In practice, however, games are often designed to punish turtling through various game mechanics. Consequently, while turtling strategies are usually simple enough for novices to learn and are effective as such, they are easily defeated by experienced players who understand the game's methods to counter turtling."

That being the case, I strongly suggest that a draw rule be used to inhibit the use of turtling.