While there are differences between UCCE and WCCE, the later supports many of the same features available in UCCE (e.g., CVP Call Studio applications, Finesse, precision routing, etc.) WCCE is a natural migration path for customers that want to move ...
The two points you listed in your question are correct, for the most part. Learning UCCE is a gigantic undertaking. It takes years to become proficient at it. I also came from the UC/UCCX side of the house and started doing UCCE much later into my ca...