aleace - You're correct that in the general definition of the terms they tend to be considered that way. When we think about the intents customers are trying to achieve we do see 2 distinct scenarios at this point, one around broad policies to catch everything and need to do this as simple as possible and then another one when customers are diving deeper into classifying their content, enforcing particular processes and workflows, etc. So faced with the decision of trying to make both intents fit in one experience we've chosen to separate them (while they leverage some of the same underlying technology) to continue to simplify Information Governance and give you more workflow and automation in Records Management.
Hopefully this proves as useful as we think and always willing to hear the experiences as we continue to ship towards this vision.