I think the lore explanation for light saber tech not being more common is the "Kyber crystals" they require are very rare, and also maybe it requires the force to use it somehow? Grievous was a cybernetic with an organic brain, and a sith lord.
The difference between G+ and now is that Google search is actually bad now and they need to do something to fix it, but they just did the completely wrong thing...
That means you're not allowed in, and that's OK 😂
Probably should be redirected to a login page or something though 😅