You mean fictional armour on fictional characters in a video game that most of which is pure fantasy and cannot possibly exist in the real world? Practicality is almost as bad an excuse as trying to justify your dislike by using the "it's not realistic". More than half the women and not just men on female avatars I actually play with choose to glamour their items to look like short skirts, soft and squishy dresses, halter tops and belly showing armour and such by choice even when running dungeons because they think it looks 'cute' so your preference for what you deem fashionable, in good taste or ideal is not the benchmark of which everyone else must comply with.
If wanted practicality or realism then more than half the existing gear in the game would fail that standard including the very armour you do not like and not just because of the tiny gap around the belly either since even without that gap it would still not be practical or realistic. It's funny how dresses made of cotton and wool, leather and such is somehow immune to bursting into flames when hit by a fire spell or does not get cut to shreds when sliced and diced by enemy claws and blades, spikes and such on armours not slicing your throat open when turn your head or impaling yourself all the time when jump or run, sit down or dance, armour and weapons so heavy or big that 'practicality' and 'realism' goes flying out the window despite the fact that armour might cover your belly button or when bombs explode your legs do not fly off even though wearing light armour...
As said earlier the only thing that matters is you have the freedom to change it if do not like how it looks, you already have that freedom creating a male character for the male version, using the gender change potion if can't be bothered to level a male one...even wearing a different armour or glamour change the one you do not like to one you do. But sorry this 'realism' or 'practicality' nonsense can sod off and I have no patience for it being used as an excuse because it's nothing more than a load of hogwash regardless of how harsh I may sound about it.