|But "software quality" is a totally different point. You still have to deal with the other points.|
In fact, Mathematica is not as flawless as WRI would like you to believe; just read sci.math.symbolic. Free software holds up pretty well, as it does against other famously well funded monopolists.
- is irreproducible, un-reviewable science Science?
Jordi was following the implications of an everyday scientific tool being completely, permanently closed. His points still stand (rephrased as questions):
- what does it mean not to know how that tool works?
These are new issues (in the history of Science), and essentially unexamined. (I and friends had been deeply concerned about these questions before I found out about Jordi's essay.)