The way I understand it is that you still need a CLK signal, entanglement is the DATA pin. The primary purpose of entanglement is privacy. A sufficiently advanced species may choose to use entanglement to hide from the rest of the galaxy, and the CLK radio burst could be made to look suspiciously like natural phenomena (FRBs).

However, a major point of contention is that humanity occurs far too soon in the life of the universe. It has taken life on Earth 3.5 billion years to evolve to us, that means that there have been just under 4 epochs of human evolutions in the age of the universe (and just over 1 epochs of human evolutions in the age of Earth). Chances are, using sci-fi nomenclature, that we are the "ancients." We have quite a lot to get done for those that follow.