Alright.........
I generally hate the response "whatever", but it fit my reaction. I felt as though you were merely relaying info and not giving an opinion, so I didn't what my response to be directed at you personally, but at the source of your info.
Because your mindset still begins with the Crystal is just that...a crystal. Instead come at it as that the Kybers are semi-sentient conduits of the Force.
Just.........no. It's a rock in a piece of hardware. If I wanted weapons with attitude I'd be more into Harry Potter.
“The crystal is the heart of the blade. The heart is the crystal of the Jedi. The Jedi is the crystal of the Force. The Force is the blade of the heart. All are intertwined: the crystal, the blade, the Jedi. You are one.” - Luminara Unduli
This was pre_Disney in the Clone Wars Micro Series. Of course you could read it as metaphorical...but its obvious the Idea of the Crystal being more was in George's head.
Fully aware that this is a quote from the superior CW series.
It is actually, but I read it as comparing the crystal to one's heart. The color of the blade is affected by the condition of the heart. A pure heart stays in the light, and a corrupted one leans to the dark side of the Force. In fact, it paints a better notion that the crystal should merely change due to exposure of intentions. I could envision some neat stories of how saber blades start to change colors within the order, basically telling on the owners.
As I've said before...making the crystals more mystical is something I always wanted to see. I never bought that in a Universe that can heal fatal injuries, travel light years in days and control the weather...some non force user had not backward engineered the construction of a lightsaber. Making their connection to the Saber more Force Oriented erases that imo. While there are things I would change, I am supportive of the idea.
At the risk of breaking rules, I'm going to draw a parallel to Raiders of the Lost Ark. At the end of the film, when the Nazis open the Ark, Indy knows not to look at it. He is spared not so much IMO because he is a religious man, but because he knows about (though may not fully understand) the power of the relic, and that shutting his eyes in reverence might stem the wrath that is pouring out of it. In a similar fashion, a layperson of a galaxy far far away could activate and use a lightsaber without having a Force connection to it. I know how to apply paint to brush to canvass, doesn't mean I can achieve the greatness of the Mona Lisa. But if you want a closer example of why something like a saber hadn't been reverse engineered, think about why (Legends & Disney Canon) beskar was never mass produced and marketed. Metallurgy is much simpler than the construction of a lightsaber. In the reign of the Jedi, sabers were a guarded secret, and in the days of the Empire, they were illegal to possess. Makes it a little difficult to reproduce something that isn't likely to be in your possession long enough to thoroughly study, dismantle, find suitable materials to reproduce.
To me, the ability to produce a fixed length plasma blade is pretty special. It didn't need anything added to it. A weapon with a will is too Harry Potter, and rocks that have some mystical connection to the universe is too MCU.