I think it was both. The Original series had the underlying Mormon theology. I think RDM and the writers are just having fun with throwing in these Jehovah Witnesses references with the reimagined series. So yes it’s the Temple of Aurora but we the viewers can have a chuckle about it being the Watchtower building. Of course if the RTF consisted of 144,000 then we’d definitely know that we were on to something big!!
See my post # 46. I think we’ve nailed it!