Joel's criteria are intended to be efficient and diagnostic of common problems. I think his choice here is based on seeing teams use ineffective tools because effective tools are "too expensive". Whereas being made to use expensive tools and being forbidden from using more effective free/cheap tools is more rare.
One thing that Joel's list isn't, it isn't how-to-develop-software, or how to manage software projects, etcetera. There are many books about that. Joel's list is about recognizing ineffective leadership that will waste your time, which is finite, and limit your career and your earning power. And it is a checklist that you should be able to move through during a single on-site interview, not something that requires a four hour conversation and requires you to do an in-depth analysis of their decisions.
One thing that Joel's list isn't, it isn't how-to-develop-software, or how to manage software projects, etcetera. There are many books about that. Joel's list is about recognizing ineffective leadership that will waste your time, which is finite, and limit your career and your earning power. And it is a checklist that you should be able to move through during a single on-site interview, not something that requires a four hour conversation and requires you to do an in-depth analysis of their decisions.