First and foremost, the manufacturer should be producing a product that comes from the factory that does not expect the end user to do their quality control and parts installation.
There is no way RA doesn't know that locktite is needed on screw in fasteners, evidenced by the apparent notations in the instructions.
When you buy a new car, or a new bicycle isn't it reasonable to expect that all of the fasteners are correctly installed and will not be falling out with use? A firearm should also be correctly assembled before leaving the factory.
So it is completely reasonable for a customer, especially a Canadian, to be extremely agitated when their $2500 rifle has parts falling off, but a $500 Norc can be forgotten about and rarely does anything ever go wrong.
When a manufacturer, or business decides to make such an arrogant comment about how their CSRs are to be treated, you would think they would ask themselves what the problem with the rifle is to be receiving so many negative calls, instead of taking it out on their customer base.
It is unlikely that the XCR will ever be more than a novelty sporting rifle. I like the XCR, it has some some interesting features, but it can also be said that it is a bland rifle and that the only reason it even sells in Canada at the exorbitant price that it does, is that it is non-restricted. As pointed out by many others, if the AR was Non-Restricted... the XCR probably would have never made it to Canada.
I really liked the renders of the XCR-M, but do to RA's policies in regards to their customers there is no way I will ever purchase a RA product.