Your characterizing cartel coins as a refund is absolutely, 100% wrong.
cartel coins are an extremely baddly worded refund for recent PAID purchase of a NOW free product.
A refund is cash back. They could spend it on a toaster or gas or a beer. Or even hold onto it and use it to buy the next expansion pack. That's a refund.
What they're actually being offered is an in-store credit that's not even going to be good to use to purchase the next expansion pack. If they are disinterested in the cartel market, the 1,050 CC's are beyond worthless to them.
That is, of course, unless they exercise their consumer rights (protected under the laws in the various regions SWTOR does business) and demand an actual refund.