product, add to cart form tags

[torvista]

1. The enclosing tags for the form seem far wider than necessary/very detached from the form fields.
   The start tag is right after the breadcrumb, encompassing the category image, prev-next, product name, Ask a Question.
   The end tag is...at the end, including description, reviews, Also Purchased.

Doesn't seem right and not an error, but to add another form like Back in Stock/to put AAQ on the same page/merge the two, requires moving that closing tag up to where it actually should be.
Why not put the form tags only around the input elements?

2. The form id "AddToCartForm" and name "cart_quantity" are not the same.
   Not a bug either, but it seems convention is to keep them the same.

While logically AddtoCartForm would be the better one to use, it is not used anywhere and so easy to replace, unlike cart_quantity which would cause much wailing and gnashing of teeth with plugin authors if touched.