The universe itself can and does expand faster that the SOL without breaking Einstein’s law. Reasonable to think beings, at a million years ahead of us, a brainiac society, can’t manipulate the cosmos enough to speed across the galaxy instantly from point to point using wormholes or surfing via the alcubierri effect without physically approaching the SOL
The speed of light is much slower today than a billion years at. It is related to the increase in zero point energy as the Universe expands.