I think it should. However, this shows up an edge case. What if the
author provides non-contiguous rows or columns, as aria-row/colindex
allows? For example, suppose only columns 1 and 4 were in the DOM (using
aria-colindex), but column 1 had a span of 2 (using aria-colspan).
Column 4 in the DO
It's technically not quite a match for localizedExtendedRole, as that
would suggest there was an extendedRole. However, I
thinklocalizedExtendedRole is still a better match than object
attributes. It may be helpful to update the spec to note that
localizedExtendedRole can be valid even if exten
