While the parameter object is exposed, it'd be great to be able to filter by custom form. Of course, you cannot group by form since it is a multi-association, but this would really useful when analyzing the parameters, as well as when creating fusion flows where you need to bring in all the parameters on a given form.
Right now, the only way I can see to do that is by having a window open with the form and another window with the FLO. With a report, I could shave a lot of time off the process since I could sort the report alphabetically, just as the parameters show up in the fusion card field list.