I think that there are two sides to every story. On the one hand, you have plenty of stories/BAD experiences regarding RA customer service. You also have a CEO who dictates how his staff deals with said customers & what the service policy of the company is.
On the other hand, you have stories/GOOD experiences regarding RA customer service (Of which I have personally experienced both - bad & good - overall good though)
But let me ask a question - if you started a new, small company, designed a product from the ground up, put the product out on the market & your first customers TOOK A CHANCE & SUPPORTED YOU so that you could work out the bugs, develop the product & grow the company - and you repaid them by completely eliminating said product, parts & support (to the point of basically disowning & disavowing both the product & the customers) in order to work on a NEW product - should you be surprised if some people aren't happy?
M96 owners HELPED BUILD Robinson Armaments - the cost of having spare parts & support available to keep the product working in the spirit it was designed for would be small compared to the goodwill generated by actually caring about your first customers.
I'm not saying that RA would do it again to XCR owners - but it was only a couple of years ago that M96 owners said the same thing.
Personally, I like RA products & would consider an XCR if I didn't already have an M96. Realistically, I would wait & see how things go - its always a gamble if company policy, products & service can change depending on the owner's whims.