My concern:
When figure contains only a table element, <caption> is omitted in favor of <figcaption>.
http://www.w3.org/TR/html5/tabular-data.html#the-caption-element

When coding in a government environment where data tables are frequently used, I see having different ways of coding table (sometimes with caption, other time with figcaption) confusing.  It might also increase the chance of having failures of accessibility.


 
My proposal:
Revise the statement below and consider changing it to "the figcaption is omitted in favor of the caption" or have equal power for <figcaption> and <caption>
http://www.w3.org/TR/html5/tabular-data.html#the-caption-element

When a table element is the only content in a figure element other than the figcaption, the caption element should be omitted in favor of the figcaption.
 
My arguments:
- <caption> is the original element created for table titles.
- Maintaining one way of coding the table will prevent confusion when <figure> is used as a grouping element for table with footnotes.