Drawing Markup and Annotations using Reader with Commenting-Enabled PDFs

I recently purchased Acrobat Standard to produce commentable PDFs for my contributors who use Acrobat Reader. 

The page linked below says that I can use Acrobat Standard to "Manage shared reviews, collecting everyone's feedback in one PDF and letting reviewers build on one another's comments‡" 

Adobe Acrobat XI 

I have used these features in the past with Acrobat Pro, but there wasn't any documentation that hinted at what appear to be limitations.  For example, using Acrobat Standard I can send a PDF for email review, but the only tools that my contributors can use with Reader are the sticky note and highlighter.  In the past, when I used Pro,  the whole suite of markup capabilities including Drawing Markup and annotations like strikethrough were available.

I have looked everywhere for information about how to enable these other commenting tools, but can't find anything.  Am I missing something or is this some misleading marketing materials that have led me astray.