I mean, it sounds like GMBM was looking at trade options for both Sammy and Vanny. He found a taker for Vanny, but nobody was interested in trading for Sammy's RFA rights. (Especially given his expected arbitration award. That's just too much for any cap-conscious team to spend on a backup.) I don't doubt that GMBM was working the phones, and I highly doubt that he had an offer, any offer, for Samsonov and was like, "Aw hell no, let's just not qualify him and let him become a FA instead!"
So if your opinion is "his outing in the playoffs should have bought some credit elsewhere," I'd argue that the end result here shows he didn't have value anywhere. Then again, maybe the Caps do sign him as a backup for less than the expected arbitration award. We'll find out tomorrow.