Disagree. The reason that logic works with thieves is that the thieves have limited time and resources, and both high risk and high opportunity cost.

In this metaphor, if Thief #1 can't do it, he hands it over to a "bank" of 1,000,000,000 Thieves who will get to work opening it, while Thief #1 moves on to the next house.

Agree w gparent. The thieves largely use the same toolsets and aren't making bespoke tools for each job. If the obfuscation volume doesn't rise to a level where it is worth addressing by a standard toolset then the thieves won't have access.