Knowledge of weaving is being passed on hand-to-hand, in small communities, and in rabid publications. The loss of traditional culture by most western society has been going on for a long time, and the seeming frantic pace of today's deaccessioning of culture and craft are nothing new.
Unless we are aware of the tide, we wonder as the water comes over our toes.
The parallel of weaving and traditional photography is interesting, except it has been generations since handweaving had any commercial existence. All should not be gloomy for weaving, however. The Knitting addiction is spreading among today's young ones, and it is a well known gateway drug that leads to the loom and wheel.
It is a tough time to move into a boutique store for a handcraft when there is more production capacity available for weaving hardware than is being used, at the same time Fiber Arts programs are throwing out fine looms that are too large for most beginner's to manage.
Kinda like Durst 8x10 enlargers going into dumpsters because folks are too cheap to have them shipped cross country.
The advantage to being a weaver today is that it IS possible to acquire simple tools and materials, and to join small communities where the craft can be passed on. Photography is much harder, for we are so much farther from 'homemade capability'. Turn the clock back a hundred and more years to collodion and platinum prints and that is the level of technological sophistication that is almost self sustainable. If boutique manufacturers can continue to manufacture current emulsion films and papers, fine. If not... well, back to 1890.
For what it's worth, Neil, this household has 3 Deardorffs and a 170 Glimåkra. Both my wife and I mentor other craftspeople, and are in turn sustained by our peers. It is far easier to create interest in weaving than in photography, because most accomplished weavers understand a simple table loom is the limit for beginners.
The biggest problem large format photography faces is it's neurotic overcomplication of image making. To make photography appealing to normal people again, it must first become simple. And that demands that WE grow into image makers and outgrow ideology, and the obsession with gear instead of pictures.
I'm pretty sure photography has to die a little more before we learn THAT lesson.