The fact that they needed Doras at all brings into question just how exceptional they claim to be.
Any way you slice it, it's a black eye on Wakanda because it frankly was designed to be. The only reason the concept of teenage brides/body guards stuck around as long as it did was because it visually cool, as T'Challa needed either. Hell, you can argue when he fought Doom they actually got in the way. At best, they dealt with red shirts that T'Challa was too busy to dispatch with himself.
Once they were expanded to be more an army than just 2 body guards, it actually did make more sense in a fuctional capacity... but it also didn't quite make sense that there was an army in the first place if this supposedly was new. So Maeberrys retcon had its ups and downs.
Either way, glad the MCU side stepped all of it and simply made them adult female soldiers. It just works better that way.