There are already task under "Subject" to renumber the columns in the Grid, on the Form or in a Card list.
But as far as I know there is no such task to renumber the columns in a table. When, for example, importing a table from another table leaving out some of the original tables, gaps in the column numbering are introduced.
Also when adding columns and one wants to place them between a few other columns to keep things in a logical order, this is possible, but after various alterations you'll run out of free numbers to instert.
So why not add a taks to resequence colums as well? To keep things neat, after all.