Latency will be higher then ping but it’s because it’s a different value not just a rename, you can read about it here
Overall it’s actually more responsive, because it gets results every 3 seconds instead of every 15 like ping did as explained in that post.
People think it’s just a rename but it wasn’t, it was a change in how it’s calculated and Blizzard said it’s normal for it to go up around 20 compared to the old ping, nothing changed networkwise just it’s displaying a different value calculated differently to the old ping.