I thought the Eric/Ghost Val scenes (yes, that's what I'm going with), were well written and, really packed an emotional punch. These kinds of scenes usually only work with characters who have a long and loving partnership that viewers have followed for many years (much like the Marlon/Tricia scenes).
I think it's nice that they left it ambiguous, so that viewers could see Val as both a ghost and a figment of Eric's imagination.
However, I don't understand how people can be emotionally taken out of scenes like this, just b/c of the ambiguity. The emotional impact and attention to character is still there even if you believe Val is a ghost or imaginary. It's like people's cynicism takes over and all you see is something that's negative, absurd or far fetched instead of enjoying it for what it is - a piece of creative fiction.