+1 on this, but in the mean-time, I’ve created a workaround. Simply use a “Taxonomy” as a select or radio (single value) field, and to get a link to that taxonomy archive, use:
get_category_link( get_field( 'your-taxonomy-field' ) )
for example, I used it in this way:
printf( '<a href="%1$s">Your Category</a>', get_category_link( get_field( 'your-taxonomy-field' ) ) );