Indeed...i also don't kow what technological significance it has other than the cloaking device. It'd be like if the US recovered a soviet warship...unless it was the sub from the Crimson Tide, not sure what they would really learn from a Klingon scout ship.I find it hard to believe the one from SFS is the first BOP the Federation has "acquired". It is however one of historical significance. So I can see it in a museum.
So for the Defiant A.... is it possible it was involved in many other skirmishes, which might have damaged it to the point of not worth repairing (i.e. a whole new ship would be worth it)?
is there is a list of the ships in the Museum?
And for it being a Museum...i wonder if it's more for specific Starfleet personnel and cadets.... so Geordi's project might have been a "training exercise" where he essentially used interns to rebuildi 1701-D.