Hi Mark
The blog entry shouldn't be frustrating, it's very accurate. Unless you are saying that your plugins is a Firewall capable of stopping vulnerabilities from exploited. It's great you're able to patch your users, kudos to your team.
Not sure I agree with your point about it being better than blocking it via .htaccess, that's not entirely accurate. It is effective to patch though. The one risk you introduce is patching someone else's work. What happens if they upgrade later, now you start getting into conflicts with code and that can be all kinds of bad for the users. Food for thought.. but I'm sure you have thought through that.
As for marketing links. Which are you referring to? Pretty sure I didn't share any marketing links here, just a link I felt addressed the question being asked. I also didn't see this in the WordFence forum, rather in the /tags/hacked forum. We have no relationships with BlogVault and are not mentioned in the post, unless I missed it.
So to your point, pretty sure it's helpful to the community.
All the best
Tony Perez - Sucuri Co-Founder