Currently, the 6.5.2 Content Editor does not seem to use the label tag to associate the labels of radio buttons and checkboxes with the onscreen controls. If it did, it would allow a user to click on the text of the label, most modern web browsers would select that option.
In fact, the Content Editor does not seem to be using the label tag correctly even where it does use it (the labels displayed to the left of each Rhythmyx control.) The for attribute of label elements should be set to match the id attribute of the form control. Checking the HTML source, it is currently set to the name attribute of the form control. This might have implications for accessibility, as assignment of labels to controls can be used by speaking web browsers, etc.
Andrew.