I hope they don't either and I don't think it is really in the radar. I have seen it mentioned on the Bungie forums but it is usually ignored over the tsunami of Exclusion Zone posts.
People also dismiss it upon hearing it. I have mentioned it to randoms in Raids and Nightfall and they saybtheybwould rather just do Exclusion Zone since it is "about as fast". Few understand the sheer efficiency of GK farming route no matter how you explain it.
I will never farm it any other way, got a big stash of beads for a rainy day too.
I wonder if Bungie ever sees the analytics of dozens of people swapping Gorgon cp and now GK cp. The gorgon is self explanatory but seeing dozens of people shuffle through GK and never progressing would be eye raising.
Bungie know about at a minimum because they read every post in this thread even if they don't post much.
I don't think they care if we do it but they might care if they see it catch on broadly.