Is it possible for them to shift their business model from content production rather than mini production? High quality mini files with supports etc. that people can buy?
Right now 3d printing is very time consuming. They can be very temperamental especially if you live in a country with wide temperature ranges. Exposure time, resin quality, FEP quality, FEP stickiness, to controlling temps during curing, support cleanup, etc. What I have found is not all "presupported" models work the same world over due to the above differences too. So GW has nothing to fear right now, but it will always come down to Price vs effort, if the models were a reasonable price I wouldn't bother spending what little time I have on 3d printing, I'd rather be playing. That said 3d printing is getting easier... slowly.
That said GW does see the writing on the wall, hence their move into streaming media, apps and toy lines. They are focusing on bringing in the gold while they can with their mini's. That focus on cash has caused them problems with the quality of their products and customer experience with the hobby, I see a lot of parallels to other companies like Atari, hopefully they can reset their focus back to the product rather than their pockets, as very few companies survive once the inevitable dive starts.