People keep throwing around this term, "unrealistic" as if it's a magical end all word. Just go ahead and admit this is offensive to your taste and move on. Someone already came in and debunked that this term 'unrealistic' has no water in it. It's all based on what the developer wants. If they want massive spikey armor that wouldn't ever work because of how heavy it is, they will still have it in. If they want stripper plate in because of yolo, they will have it in.
You will have to point me to this person.
Developers tend to add in crap armor because they believe that the quality of the game world won't suffer if they exercise *complete* liberty in terms of aesthetics ,they are wrong.
Boob plate is the equivalent of a minor plot hole(in the popular sense of the word).People begin asking important questions like "If this warrior is so serious and competent,wouldn't they know how useless and dangerous this armor is?"
When people say they want realism they are really saying they want the setting to be coherent and therefore immersive.
1:a sword is a piece of metal with sharp edges meant for cutting,not smashing.Swords that are too large are useless,therefore they shouldn't be brandished by competent warriors unless it is established that the material is lighter than steel,even then,it would be better to keep it small for better speed.
2:Armors that don't protect shouldn't be worn by people who are fighting hordes of soldiers and travelling through extremely harsh terrain.Armor that exposes vital organs is horrible armor.Armor that has a glaring flaw that could kill you should never be worn by competent warriors.
The rules need to make sense and add to the quality of the game.
If the main character cares more about how she looks than about stopping a Haakai from burning her country to ash then perhaps boob plate is for her,but she will need to be aware of the disadvantages as well ,ridicule from her peers and certain death.