Re: "They're just trying to decide whether a twenty year-old Klingon B
Blame Brannon Braga for the lame ass way the ENT-D went down. He wanted a scene where the saucer section was crashing on a planet. He says this on the GEN commentary with Ronald D. Moore. The saucer section crash was something he had planned to for the finale season 6 of TNG. In season 7 the TNG crew would've just gotten another Galaxy class with the name ENT-E. The destruction of the D was a means to an ends (no pun intended).
I believe it was inspired by the crash scenario in the TNG Technical Manual.
I think I prefer the E though. It was the first time I had the anticipation of a new ship
"Weaselling out of things is important to learn. It's what separates us from the animals - except the weasels" Homer Jay Simpson