Someone who wants APL2 but not to pay anyone for it uses GNU APL: they just aren’t that far away from each other. Maybe it’s worth closing the gap, but who pay

Someone who wants APL2 but not to pay anyone for it uses GNU APL: they just aren’t that far away from each other. Maybe it’s worth closing the gap, but who pays for that? APL2 has already been paid for, so it’s hard for a company to pay for it again. On the other hand, they continue to pay for support, and if there were more APL2 users then that could surely save them money, and it seems plausible that a FOSS APL2 would make more APL2 users, but the existing APL2 users would suffer because they would be able to command less money for the support they already offer.