The part of thr article on information theory is more about mathematics than software. I don't deny there could be some generalization there.
The problem I see is that this could slip to measure human actions, which are also source of uncertainty, but although the words fit, in this particular case I think associating it with classical entropy does more harm than good.
https://en.m.wikipedia.org/wiki/Software_rot
Entropy as described in this article (software entropy), to me, does not fall under the same generalization. It is a looser use of the word. I used it myself several times, but now people are buzzwording entropy all around, and I think that looser use should be retracted to avoid thinking of humans as numbers or particles.