Yes, I'm sure this 20 year old legacy, proprietary code that was requested to be released by users of the (GPL licensed) FreeDOS project now won't ever be used again.
Anyone planning to use this software will need to run some kind of DOS (proprietary) or FreeDOS (GPL) so I don't know what license incompatibility this could possibly cause.
I'm hoping Japheth finds some useful info and adds that to JEMM.