JND Kojun is for a different market..
I somewhat agree, but think the primary contributor to that is their pricing since it's straight up a prohibitive barrier to entry.
1/6 is really advancing lately so expectations across the board are rising as higher quality figures become more commonplace, along with constantly rising prices being expected.
Ultimately JND are in the 1/6 figure space competing with HT Artisan and InArt; both of which appeal to collectors who really care about accuracy, quality, and realism with regards to sculps, hair, seamless joints etc. and have a fair amount of disposable income. Maybe we can even throw JazzInc into that group.
Since HT and IA are cheaper than JND yet still make great stuff- especially IA, it's fair to expect that JND at a notably higher price point would be producing the best, most realistic, most accurate pieces, using the finest materials suitable for only the most committed collector but, with Joker, the increased price really only seems reflected in the fact they're using non-standardised tech and assemble figures in-house.
Whoever they're trying to appeal to, I think they've botched this first release big time and, with so much riding on a Ledger Joker, it's no wonder they're recalling the first batch to completely redo it. Shame the sculpts won't be changed at all though.