I dunno, Jon, that I share your interpretation of what Mark's saying on the business card. I took it to mean that they stand behind their products, but won't be patsies for schemers who want to sharpshoot the system.
Be that as it may, I've had only a couple of dealings with LaRue Tactical, and they've been very positive. I purchased an LT-104 SPR mount for a Trijicon AccuPoint scope to top my 6.8 SPC build project, and have been most pleased with it. I don't remove that scope, so it utilizes LaRue's VFZ mount rather than the QD, so I can't comment on return-to-zero, but it has gotten good reviews elsewhere and seems to be of very high quality.
Other items I have purchased through them have been price-competitive and a straight-forward process from ordering to shipping.
Plus, there's the 'Dillo Dust and other swag that comes with the shipment!
I'm sorry and somewhat surprised your experience with them has left you disappointed, but I know it happens sometimes.