It's not 2018 anymore, so that's not quite true. By now free models have been there forever, and indies have been using them for as long. I mean, Filian has already been using one over 4 years ago.
Which caused some problems with merchandising, but that's a different can of worms.
> Which caused some problems with merchandising, but that's a different can of worms.
Can you expand on this? Are they not able to sell merch since they don't "own" their design?
How popular are they? Have they considered buying the model from the authors?