That's part of why experiments like this are done. Reflect Orbital would prefer that the spot be kept as tight as possible, they ultimately need to test out the technology to refine it.
Almost everyone in this thread seems to be jumping straight from "their first prototype was approved for testing" to "therefore every plan of theirs is about to be immediately implemented." And the dopamine that comes from the ensuing rage and fear is making it hard to accept otherwise, it'd kill the buzz.
Why would they spread the light evenly? They're planning on selling it. Someone would need to pay them to have a place illuminated, it's not going to be randomly beamed all over.