I read that article and it is very redolent of what SCO argued back in the day. If they had actual proof, they would take legal action against the author of that plugin.
They share a similarity: the Floragunn litigation is unresolved (and clearly Floragunn continues to distribute their plugin). SCO, too, failed to resolve their litigation favorably to SCO.
That is a very tenuous connection. Floragunn has not resolved the litigation in their favour, either.
If we are going off similarities, Napster also continued to distribute their software while their lawsuit involving the RIAA was unresolved. The court still ruled against them eventually.
I am not sure of the outcome.