Not exactly. It says either technology can be equally invalidated by the user with the same level of effort, which makes the “disabled JavaScript” rebuttal particularly weak. In practice, though, what percentage of users disable JavaScript where cookies are used?
Self-destructing cookies make sites usable but denies them use of an easy tracking tool. It would be nice if Firefox added this as an optional built in feature to complement the 3rd party cookie blocking. 99% of the cookies you receive don't need to be persistent so why keep them around.
