Is Post-processual archaeology a form of religion?

Anyone who has excavated a complex prehistoric archaeology site will have realised that they are quite difficult to understand. Some archaeologists, faced with deciphering this complex phenomenon, decided the easiest thing to do was abandon objectivity, go beyond the empirical limits of the evidence, and simply ‘make up’ something to explain it, redefining the terms of reference for archaeology to allow them to do this. For convenience, I will use the term ‘Post-processual’ for this new archaeology [1], although this term covers quite a wide and very complex can of worms.
Among university academics, these post-processual archaeologists are in the probably unique position of being paid to invent knowledge to cover those topics currently beyond our understanding, especially in those areas where objective knowledge is impossible. 
Traditionally, this is the province of religion, whose prophets have special insights beyond our shared objective reality, and whose texts can testify to events that transcend normal physical laws. While priests can report on opinions and beliefs of prophets, and even gods, at least they have some written records to work with; professors of prehistory can profess a detailed knowledge of the minds of people who left no records at all, and use it to explain the physical evidence.
Is it time to reclassify this form of archaeology as a religion, differentiated from mainstream scholarship, and fund it accordingly?

24. Systematic Irregularity: Why almost nothing in the Celtic world was square

There are some things that are so obvious that nobody notices, and they pass without comment or explanation. About twenty years ago I noticed that almost nothing in the ancient Celtic world was square, so I named the phenomenon “systematic irregularity”, and published it, but ironically nobody noticed that either. [1]

So second time around, and now in colour, I give you Systematic Irregularity, a phenomenon which can be observed in many aspects of the prehistoric Celtic world, which is a problem, as I can’t show you everything that isn't square; but you can trust me – I’m an archaeologist.

We are all familiar with the restless flowing curves characteristic of Celtic decoration, particularly the Iron Age La Tène Style, exemplified by pieces like the Battersea Shield [left], not a place you would really expect an unnatural shape like a square; however, it goes much deeper than this.

17. Not Seeing the Wood or the Trees

Prehistoric material culture was mostly made of wood, yet most archaeologists largely have studied the inorganic aspects of culture, since timber so rarely survives. However, it is still important to consider where the wood that we didn't find came from.