For a start, this doesn't seem to be crucial to me: You can always use the Firefox' add-on "Screengrab" that can fetch complete (even scrolling) web pages if necessary. (There should be similar add-ons for other browsers.)
I would, however, agree if other issues weren't more central by now, but there are such.
- A major next step in Activiti's roadmap is transactions - and, therefore, BPMN compensating activities.