Please explain...

Old Navy is selling maternity THONGS!?! Their description read as follows:

Designed especially for moms-to-be! Cotton-spandex blend is wonderfully soft and stretchy. Cute thong cut eliminates panty lines. Elastic waistband fits snugly under tummy, with lustrous elastic trim for style and comfort.

What on God's green earth makes them think that:
A) We would need one more thing to make us uncomfortable especially in the form of dental floss
b) We are in need of something cute to attract the opposite of sex, apparently we are not lacking in THAT department
c) These would even look remotely cute on our butts that now require their own postal zip code.
d) That with the million other things going on we'd be worried about panty lines!

Not to mention that these are described as "low-rise" Honey, when your belly is expanding everyday, everything is low rise. Nothing fits like it use to and everything falls well below the belly not to be seen again for the better part of a year. Forget cute panites, give me the good old-fashion granny panties. The kind with pink and blue flowers, that come half way up to your boobs and have enough material in the butt to blanket the state of Texas. I'm much less likely to suffer from perpetual plumbers crack with those.