I think the initial confusion is that you mean rotj 2.5* (not 2.7) is still listed.
And I think that’s a valid question (which might have a good answer/justification):
Why is rotj 2.5 still listed when rotj 3.1 is released (and presumably supercedes it)?
Exactly my point. I wonder if it’s because ROTJ 2.5 is made like all the others DEED (by adding different sources together), whereas 3.0 and 3.1 are from a 1983 source, and demand a different set of skills.