Can someone explain this to me?

So they have the technology to travel faster than the speed of light, teleport, communicate with previously unknown alien species as if speaking English, fabricate a cure to an alien virus with minimal equipment, and create a wheelchair operated by brainwaves. But they couldn’t come up with a way for a guy who is clearly still neurologically intact to communicate other than a little flashing light?

Can someone explain this to me?

Never really watched Startrek before, but I’m trying to do my nerd homework

Can someone explain this to me?
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