Ben Forta wrote a post on his blog last year about the changes to Coldfusion and Dreamweaver.
You can see it here - http://forta.com/blog/index.cfm/2013/6/30/On-Dreamweaver-CC-And-ColdFusion
The main reason seems to be Coldfusion Builder and moving Dreamweaver to do the "client side" aspect of development.
Forta gives a good explanation in his blog. (Thanks for the link). However, I agree with many of the comments that indicate Adobe management has their head in the sand.
My biggest gripe is no longer highlighting CF comments in the code. I do most of my coding by hand.