Having a wife who carries but doesn't post in forums, I can tell you the following. No, purse carry is not ideal versus some other methods we might be used to. However, for those who don't know, women's clothing can be absolutely baffling. Aside from form-fitting designs with unusual contours, there are all kinds of fun surprises like fake or practically non-functional pockets. Women also have all these curves on their bodies. These curves change slightly throughout the month all on their own. This can pose serious challenges to what we'd consider "normal carry".
If that's not enough of a challenge, remember that women can miraculously make babies in their bellies. This entails radical changes and not just to the belly area. Some of those changes have permanent echoes. There are also special garments for this time, like "pregnancy pants", that smoothly transition from denim to something like spandex at the waist line.
So, there are all sorts of options for all sorts of circumstances. These options have to be found, purchased, fit (as in not relegated to the holster graveyard that we all know), and made ready for any of a wide variety of these circumstances. This is something that can and reasonably should be pursued. In the meantime though, most women can pull off purse carry in most of those situations with one decent set-up. Remember that the gun that's easy to carry is the gun that gets carried, and having that gun carried is the most important thing for protecting the most important person in your life.