I agree - Silverlight was obviously a tactical response to the threat of Flash. When Flash went into (steep) decline, there was no reason to keep Silverlight around. Both of us called this one correctly.

WCF, on the other hand, is doing really well and is a decent approach to a framework around enterprise communications. But I admit that more often than not, I'm hand-coding my proxies to avoid code-bloat from generated DTOs (I'd rather use a reference to a shared DLL so the compiler alerts me to breaking changes)