To dodge the actual question and comment on part of the original article...
I'm not sure that (a) "Free beer" is a key component of open source, and (b) the right to redistribute can be characterised as "free beer".
The way I see it, the right to redistribute is part of the "libre" aspect, and the fact that OSS can be Free As In Beer is simply a result of the more fundamental aspects.
Apologies for going off at a tangent and opening up one of those old cans of worms...
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