I can answer that. Brinks isn't concerned with Jim Rojas at all. They see him as an irritant, not a threat. The problem for them is that other, much larger players may do the same thing. If they don't preserve their IP rights future litigants may claim that they have abandoned those rights. It's easier for them to beat up on Rojas than a large, national firm that can afford (and has enough sense to employ) lawyers.
Sadly, although he could probably have won the case if he had done things right, Jim is about to be crushed by Brinks. All this nonsense in the newsgroup serves only to provide more ammunition for Brinks' lawyers to use against Jim. Another gentleman wondered how Brinks would respond if they realized how much bad publicity the case is giving them here. I can answer that, too. They don't give a rat's olson what you, I or any other alarm industry person thinks. They already know they sell garbage and they know that we know it. They count on making the sale before the consumer has an opportunity to hear a better offer from a real alarm company. It's the same as Sonitrash. They don't care what the competition thinks either.
While we're at it, neither do I. Do you? :^)
What harm? A bunch of small-potato alarm salesman in an obscure newsgroup won't respect them any more? We never did before anyway and it didn't hurt them.