Footnotes: 

[1] I find the Org's regular way of drawing the grid lines a bit out of
the normal (scholarly?). Internally, I needed some control over the
table cells for supporting numbered equations (which uses tables). Also
a user will prefer "Top-aligned" content for text-intensive tables and
"Centre-aligned" content for text-sparse tables.

[2] LibreOffice's Autoformat facility for tables is richer than what
ODF-1.2 templating mechanism provides for. Unfortunately it is difficult
to configure by hand (as is required for the odt exporter). Honestly
speaking, I had to spend quite a good amount of time tinkering with
automatic styles used with the attached files and I am certain that any
sort of in-built advanced templating mechanism within the odt exporter
would be, what to say, utter madness. I really wish LibreOffice
supported custom styles for table related components.