The rim of the engineering hull has similar window banks to the rim of the saucer. I'm not sure exactly how they might communicate that this wasn't Ten-Forward, it was Thirty-Eight-Starboard (or whatever), but it's theoretically practical (come to think of it, I'm not sure they ever redressed Ten-Forward as anything else, outside of the President's Office in TUC).
The windows aren't the issue. It's more a question of the extravagant usage of interior space. Ideally it would've been replaced with a set more like a military mess hall.
Yes, the Sovereign is a shade longer, but by no other metric could be said to be "the same size".
Okay, it's
a bit smaller, but I wouldn't say it's
much smaller. It's much closer to the
Galaxy's size than something like a
Constitution or
Intrepid.
Perhaps, but actually I think the Galaxy-class was already in development at the time of the Narendra III incident when the timelines diverged.
Per the TNGTM, development began in 2343, only a year before Narendra III, and the
Enterprise wasn't commissioned until 2363. There would've been plenty of time to refine the design to a more combat-oriented focus.
But as we've seen in the prime timeline, Galaxies were perfectly capable in wartime.
It's one thing to take a ship designed in peacetime and adapt it to war. It's another thing to design something as a warship practically from the ground up. I still say that, if they hadn't been hampered by TV budgetary and logistical limits, they probably would've offered up a significantly different ship design. I bet the design team would've welcomed the challenge of designing and building an alternate-universe
Enterprise from the ground up.
Which circles back to the real world reason probably being budgetary and difficulty. So we are left back with trying to offer up in-universe explanations as to why it rarely happened.
And as I've said, in three decades I've never heard one I found convincing. It's just one of the many frustrations I have about the formative ideas behind TNG being lost in the shuffle of the chaos in the writers' room. There's just such a clumsy fit between the original intentions and the way the later writers ignored or changed them. Like how the E-D was supposed to have a bunch of civilian scientists onboard, but later seasons assumed the only civilians were Starfleet families or support staff like Guinan and Mot. Or like how Geordi's VISOR and Picard's artificial heart implied that bionics and transhumanism were commonplace, but later TNG and DS9 assumed that human augmentation was vanishingly rare or even illegal. (Though
Lower Decks has fixed this a bit by showing other VISOR wearers in Starfleet.)
And sometimes, at least for the writers, having an impact becomes more important than how realistic it is, like in "The Jem'Hadar." Seeing an Enterprise-like ship destroyed the way it was, and kamikaze style, had the right impact and the audience.
Again, that's because of what we'd gotten used to over the intervening years. What I'm saying is that if they'd kept saucer separation as a regular thing over the previous seven years instead of abandoning it early on, we'd have different expectations. We'd be in the habit of seeing a separated stardrive section as a capable combat craft in its own right, rather than merely "half a ship." We'd be used to seeing separation as the point where the gloves come off, where things get serious. So that would make its defeat in combat
more impressive.